[HN Gopher] Voyager 1 is back online! NASA spacecraft returns da...
       ___________________________________________________________________
        
       Voyager 1 is back online! NASA spacecraft returns data from all 4
       instruments
        
       Author : dev_tty01
       Score  : 881 points
       Date   : 2024-06-15 05:12 UTC (17 hours ago)
        
 (HTM) web link (www.space.com)
 (TXT) w3m dump (www.space.com)
        
       | gnabgib wrote:
       | Discussion yesterday 45 points
       | https://news.ycombinator.com/item?id=40676221
        
         | NKosmatos wrote:
         | It's funny how yesterday's submission (mine) only has 75 points
         | and this one 441. Goes to show that the time and date you post
         | something on HN plays an important role.
         | 
         | I remember seeing an analysis on when is the best time and day
         | to post something based on your country, but couldn't find it
         | now.
        
           | secondcoming wrote:
           | I'd guess the best time is when the Californians wake up
        
           | JohannesH wrote:
           | Timing is everything... and luck. :)
           | 
           | Me and a colleague of mine once posted essentially the same
           | video of us pushing a coke can across a table, making the
           | sound vaguely similar to Chewbacca.
           | 
           | His video got maybe 100-200 views, and mine got 1.7 million
           | views on YouTube and somewhere between 50 and 100 million
           | views across other platforms. The reason? I happened to post
           | my video to reddit a few hours later, which happened to
           | coincide better with people getting ready for Thanksgiving in
           | the states. I'm from Denmark, so it didn't really cross my
           | mind.
        
       | nnurmanov wrote:
       | Awesome!
        
       | neilfrndes wrote:
       | I loved watching "It's quieter in the twilight", a documentary
       | about how a dedicated team of engineers are fighting to keep the
       | Voyager mission alive.
       | 
       | https://m.imdb.com/title/tt17658964/
        
         | Rinzler89 wrote:
         | Anyone know which SUN workstations those techs were using to
         | "talk" to Voyager?
         | 
         | They seem to be running some sort of Unix yet look quite new
         | ish with their widescreen LCD Displays.
        
           | ricktdotorg wrote:
           | this -- fascinating -- document about porting the code for
           | the Pioneer/Voyager Cosmic Ray Subsystem[0] does not
           | specifically mention which _workstations_ were used, but the
           | doc is hand-dated to be 4/15/93.
           | 
           | so for servers maybe SPARCservers and SPARCcenters and if
           | they had good budget Sparc 10s for workstations? probably had
           | a ton of IPXs and IPCs around the place.
           | 
           | this doc from february 1995[1] "a study of workstation
           | computational performance for real-time flight simulation"
           | used a variety of SPARCs as well as other workstations from
           | HP, SGI, IBM etc. the Sun workstation benchmarks are not
           | good!
           | 
           | [0] https://voyager.gsfc.nasa.gov/Library/Pioneer_Software_po
           | rt_...
           | 
           | [1] https://ntrs.nasa.gov/api/citations/19950020821/downloads
           | /19...
           | 
           | (edited to add 2nd link, derp)
        
           | mrweasel wrote:
           | In a brief moment in the trailer for the documentary linked
           | above there is something that looks like an Ultra 24, 27 or
           | 45. That would make it an Intel or AMD based workstation, but
           | they reused that cabinet for a lot of models with minor
           | variations. I believe they had one with an UltraSparc CPU as
           | well.
        
           | oldman_peter wrote:
           | I'd like to say Sun SPARCstation Voyager[0], but I have
           | nothing on it but the name and its LCD screen. In the trailer
           | some UltraSPARCs can be seen, as noted by others
           | 
           | [0] https://www.oldsilicon.com/sparcstation-voyager
        
       | sixdimensional wrote:
       | Seeing this news is a nice tribute to Ed Stone, who was one of
       | the core project scientists for Voyager and recently passed [1]
       | (and all those who work/worked on the program).
       | 
       | I had the pleasure of meeting Dr. Stone at a public NASA event
       | many years ago. I asked him, perhaps a silly question: "what does
       | it feel like to know you built the furthest man-made known object
       | in the universe?".
       | 
       | He paused for a moment, after which he responded, with a smile:
       | "Pretty darn good".
       | 
       | RIP, Dr. Stone and go Voyager go!
       | 
       | [1] https://www.jpl.nasa.gov/news/ed-stone-former-director-of-
       | jp...
        
         | yawpitch wrote:
         | Not so silly, considering it's almost certainly always going be
         | the furthest man-made object in the Universe.
        
           | mlyle wrote:
           | I hope not-- it may take a long time, but I hope we laser
           | accelerate some probes really fast.
        
             | dmbche wrote:
             | Eh - to send it where? Even laser accelerated, even if it
             | gets to 0.1c, where is it gonna go?
             | 
             | Edit0:typo
        
               | robin_reala wrote:
               | Alpha Centauri. See Breakthrough Starshot and other such
               | potential missions.
               | 
               | https://en.wikipedia.org/wiki/Breakthrough_Starshot
        
               | dmbche wrote:
               | Obviously, no need to answer further, I'm just being
               | grumpy I imagine.
               | 
               | Man - why go there? What are we looking to learn?
               | 
               | Do they have the kilometer Gw phased array yet?
               | 
               | The meterwide/gram weight sails?
               | 
               | The chips that weight one gram with comms and cameras and
               | all that?
               | 
               | And just to clarify, they can't flip and slow down, so
               | it's a 0.15c flyby of alphacentauri, entirely automated.
               | So hopefully the code does't fuck up in this alien
               | environnement without human help.
               | 
               | What do they expect to learn at that speed and with such
               | small sensors? Like a picture of the planet, like we get
               | telescopes? I sure wonder the speed at which that's going
               | to transmit data.
               | 
               | I'm just seeing "proof or concept" but this is mostly
               | concept and no proof.
               | 
               | And if this is "step one" of interstellar travel, what's
               | step two?
               | 
               | Edit0: Just reading the wiki this is so absurd
               | -atmospheric turbulence is a challenge to deliver te GW
               | laserb- so were planning on building a km phased array in
               | space to accelerate the swarm. Just this itself is way
               | way beyond realistic. Doesn't this breakdown at napkin
               | math levels?
        
               | MagicMoonlight wrote:
               | Voyager 1 was launched in 1977 and its code hasn't
               | broken.
               | 
               | Construct a stack of starships in orbit and you would be
               | able to get a probe there. It's never about the
               | technology, it's about whether someone cares enough to
               | spend the resources.
        
               | dmbche wrote:
               | What do you mean about the starship stack? That's the
               | array?
               | 
               | For Voyager, I'll argue that it's mission is much simpler
               | (doesn't need to aim forthe position of something 30
               | years in the future) and that we keep transmitting to it
               | (the sheer distance will limit our involvement as the
               | delays between transmissions grows). It's also not going
               | at 0.15c, where it needs to do the calcs very quickly.
               | 
               | I'm not sure how easy it would be to make a km wide Gw
               | array on Earth, but building and powering it in space
               | seems much, much harder. Just harvesting the GW takes 3
               | million solar panels. Just getting that to orbit seems
               | unlikely. Even with very generous 1kg per panel we get 3
               | million kg to put in orbit, or 21 Falcon Heavy at max
               | payload, or two years of putting nothing but solar panels
               | up. It's so much.
               | 
               | And then how much money is going to make the gram scale
               | probe appear?
               | 
               | Edit0: to clarify, the probe will have less time than the
               | duration of the blink of an eye to take measurements.
               | That's limiting what you can learn AND makes it very hard
               | to aim correctly.
        
               | toss1 wrote:
               | When you have the means to harvest and beam out a GW in
               | space, it is not like the only use for it would be
               | sending those probes. Seems like damn useful
               | infrastructure for almost anything else. So, we can
               | expect the hurdles to be overcome for other purposes as
               | well...
               | 
               | Betting against humans making breakthroughs is usually a
               | bad bet. As the saying goes: "You can say 'it can't be
               | done' all you want, but please stay out of the way of
               | those who are doing it."!
        
               | szundi wrote:
               | You know the ultimate answer.
               | 
               | Because we can.
        
               | toast0 wrote:
               | > Man - why go there? What are we looking to learn?
               | 
               | The how is a much bigger problem than the why. It would
               | be great to have some closer sampling of Proxima b, such
               | as images, spectroscopy, etc. You won't get much on a
               | 0.15c flyby, but you'd get something, hopefully. No room
               | for error of course, with a several year round trip for
               | commands.
               | 
               | Having some sense of the planet could inform a
               | colonization plan that's likely to have even bigger
               | problems with the hows rather than the whys.
               | 
               | But the whys are clear. Even if it's not actually
               | feasible.
        
               | mlyle wrote:
               | > Doesn't this breakdown at napkin math levels?
               | 
               | Only in terms of cost; there's nothing that seems to be
               | fundamentally unobtanium here. The question is whether it
               | can be come cheap enough to be viable.
        
               | dmbche wrote:
               | I think the gram class probes with gram class sails that
               | are a meter wide are outside the scope of feasibility
               | today and would require unobtanium. Shielding too.
        
               | somenameforme wrote:
               | > there's nothing that seems to be fundamentally
               | unobtanium here
               | 
               | Don't you think this is begging the question? The entire
               | history of humanity is a lengthy series of discoveries
               | that people of times past would have little reason to
               | think possible, and in some cases are revolutionary
               | enough that it would likely have been all but impossible
               | for people of times past to even think of them.
               | 
               | Then there's just the boring things, like aspirin. If not
               | for the willow tree, it would not exist today. Ancient
               | medicine dating back 2400+ years recommended chewing on
               | willow bark to treat fever or pain, and indeed they were
               | right. Of course we can now easily synthesize it, but
               | that's not always a given for every compound or 'thing'
               | imaginable, to say the least. For an obvious example,
               | see: uranium.
               | 
               | And now factor in how extremely negligible our knowledge
               | of anything outside of our own planet is. We've been
               | sending probes and rovers to Mars since 1962. We only
               | discovered the soil on Mars was relatively moist (2%
               | water by weight) in 2013! 50+ years to figure out there's
               | water in the soil. And the latest drills can only go a
               | couple of inches deep and are scarcely used in any case,
               | because they tend to break. It's impossible to know what
               | you don't know, but I see every reason to think that it's
               | probably quite extensive.
               | 
               | [1] - https://www.space.com/22949-mars-water-discovery-
               | curiosity-r...
        
               | mlyle wrote:
               | ?? I think you've misread my post.
               | 
               | I'm saying that the fundamental things required in order
               | to launch gram-scale interstellar probes don't seem out
               | of reach; that largely something close to the
               | requirements could be made at great cost today, and
               | making a mission practical is mostly about cost
               | optimization and economies of scale.
               | 
               | I think largely whether we do it in 50 years comes down
               | to whether we've wiped out a lot of our economic output
               | by then with strife, and whether we still consider
               | exploration worthwhile to spend a lot of money and
               | reources on.
        
           | cryptoz wrote:
           | A very cynical take. I expect we'll pass it in 20-30 years.
        
             | dgrin91 wrote:
             | Voyager 1 has had an almost 50 year head start, and it was
             | launched with a series of gravitational assists that are
             | only possible every few hundred years. There is 0 chance
             | anything will catch up to it in the next 50 years, and
             | probably for several hundred more years after that, if
             | ever.
        
               | Sharlin wrote:
               | That's a really pessimistic take. Voyager 1 moves at ~17
               | km/s (and slowing down but it doesn't really matter).
               | That's on the order of 0.0001 _c_ and indeed just a half
               | of Earth's orbital speed, so a part of the year the probe
               | is actually _getting closer_ in Earth's frame.
               | 
               | A one-kg nanoprobe attaining 0.001 _c_ would be perfectly
               | feasible with today's tech and would overtake Voyager 1
               | within a decade. Breakthrough Starshot proposes laser
               | sail acceleration of gram-scale probes to  > 0.1 _c_ , a
               | thousand times faster than V1, and nothing in the design
               | requires fundamentally new tech. Such probes would claim
               | the distance record in a few weeks of travel, no matter
               | whether they're launched twenty or fifty or a hundred
               | years from now.
        
               | adaml_623 wrote:
               | What scientific return are we getting from a gram sized
               | probe moving at 30,000 km per second?
        
               | peterlada wrote:
               | Today: almost certainly nothing In a decade: almost
               | certainly very little In a century: almost certainly more
               | than the Voyager
        
               | AlecSchueler wrote:
               | Assuming climate change doesn't prevent any kind of
               | launch or most further research.
        
               | londons_explore wrote:
               | Modern silicon design with mems sensors I suspect could
               | do an awful lot with a gram.
               | 
               | Also, at this scale, not much can be done by hand, so you
               | can make hundreds of them for not much more cost than
               | doing one.
        
               | bpfrh wrote:
               | Doesn't modern electronics require massive shielding?
               | 
               | e.g. you would need too much shielding and would go over
               | the 1 gram restriction.
        
               | minitoar wrote:
               | If you have enough of them you can just lose some
               | fraction and still function.
        
               | flaminHotSpeedo wrote:
               | Also it may work out that a lighter, faster probe with a
               | shorter service life could have a greater effective
               | range, if the service life is less sensitive to weight
               | changes than the speed is
        
               | SoftTalker wrote:
               | And how do you get the data back from these probes? The
               | voyagers have antennas that are close to 4 meters in
               | diameter and ~25-watt radio transmitters. You aren't
               | doing that in a gram, and you aren't powering that in a
               | gram either.
        
               | minitoar wrote:
               | Just go read the starshot proposal. They address all of
               | these issues, some more convincingly than others but they
               | have thought it out in great detail.
               | 
               | In short, it's a swarm of gram-scale probes and they work
               | together to transmit.
        
               | mynameisvlad wrote:
               | The claim was that it would always be the furthest man
               | made object in the universe. Nothing about it being
               | useful or scientific.
        
               | Scarblac wrote:
               | If its not useful, it's not going to be launched and
               | accelerated that long.
        
               | mynameisvlad wrote:
               | People do things for shits and giggles all the time.
               | SpaceX _literally_ launched a model Tesla for absolutely
               | no reason other than advertising both themselves and
               | their sister company.
               | 
               | Doubly so if they can now become "the furthest man made
               | object". That's _massive_ free marketing.
               | 
               | It may also be exponentially easier to do so in the
               | future, lowering the expenditure needed to make it
               | happen.
               | 
               | It might not be reasonable right now, but, once again,
               | the bar was set at _always_. That is an exceptionally
               | high bar with very little reasoning behind it.
        
               | digitallis42 wrote:
               | They absolutely had way more of a reason than no reason.
               | Za reason for the Tesla launch was that it was the first
               | falcon 9 heavy launch, and no company was willing to
               | gamble that large of a payload on a untested rocket. So
               | they made the best of it with a PR stunt.
        
               | mynameisvlad wrote:
               | They literally could have sent up anything and it
               | certainly wasn't useful, which was GP's _only_ criteria
               | for being launched.
        
               | serf wrote:
               | >scientific return
               | 
               | that comes after 'someone out there' misinterprets our
               | super fast gram probes as weaponry and conquers our world
               | for the sake of their own spacecraft safety.
               | 
               | it's ingenious really, let's antagonize a greater power
               | into wormhole-bridge hopping over here so we can reverse
               | engineer their tech.
               | 
               | /s , hopefully.
        
               | lolc wrote:
               | If they are so much as inconvenienced by our probes, they
               | are not a greater power but bumbling roboticists like us.
        
               | withinboredom wrote:
               | 1 gram at an appreciable amount of c is about as much
               | energy as a nuke. Getting hit by a swarm of these while
               | on a Sunday drive would fuck you up, no matter how
               | powerful you are.
               | 
               | The real reason there isn't a moon colony? Person gets
               | fired and loses their shit, starts tossing 1-2 km sized
               | rocks down the gravity well and ... we all die.
               | 
               | Throwing shit in space is a sure fire way to piss off any
               | species.
        
               | kadoban wrote:
               | It would take an insane amount of energy to throw that
               | rock.
        
               | withinboredom wrote:
               | But you only need one. Maybe two for good measure
        
               | Sharlin wrote:
               | If you have enough of them, you get data from Alpha
               | Centauri within a human (natural) lifetime. Plus the
               | bragging rights, I guess, Starshot is after all a private
               | endeavour.
        
               | karaterobot wrote:
               | I don't see a date announced for launch, and I see a lot
               | of technology that needs to be invented for this to be
               | feasible. How likely is it to happen within the next 10
               | years?
               | 
               | I'm just thinking about my old roommate, a space science
               | postdoc, who told me about all these cool propulsion
               | projects that sounded very feasible. That was--sheesh--20
               | years ago, and I keep waiting for any of them to be real.
        
               | krisoft wrote:
               | > There is 0 chance anything will catch up to it in the
               | next 50 years, and probably for several hundred more
               | years after that, if ever.
               | 
               | That is a bit pessimistic. There is this paper [1] by JPL
               | and Nasa folks discussing the possibilites of sun-diving
               | solar small satelites. They think that speeds of around 7
               | AU/year are possible. Voyager 1 is escaping the solar
               | system at 3.6 AU/year. With those speeds catching up to
               | Voyager 1 withing 50 year would be doable. Realistically
               | since we are not quite ready to launch it just yet it is
               | more likely we would miss that 50 year window but I feel
               | better about our odds in the window beyond 50 but within
               | "several hundred years".
               | 
               | 1: https://arxiv.org/pdf/2303.14917
        
               | aspenmayer wrote:
               | Don't forget that sun-diving at high warp speed also
               | gives us more time.
               | 
               | https://en.wikipedia.org/wiki/Star_Trek_IV:_The_Voyage_Ho
               | me
               | 
               | But if we are warp capable, then we can definitely catch
               | up with V'Ger, I mean Voyager.
               | 
               | https://en.wikipedia.org/wiki/V%27Ger
               | 
               | https://en.wikipedia.org/wiki/Star_Trek:_The_Motion_Pictu
               | re
        
               | Dylan16807 wrote:
               | Voyager 1 only gravity boosted at Jupiter and Saturn.
               | That's not a particularly special alignment. Doing the
               | same thing doesn't need a "grand tour" alignment, which
               | happens every almost-two hundred years by the way.
               | 
               | Also it got most of its speed from Jupiter, and we can do
               | a gravity assist with Jupiter any year.
               | 
               | And check out this plan for a double Jupiter gravity
               | assist. https://www.hou.usra.edu/meetings/lpsc2020/eposte
               | r/1110.pdf
        
               | Covzire wrote:
               | Is the assist multiplicative or additive?
        
               | Dylan16807 wrote:
               | Additive.
        
               | Keyframe wrote:
               | nothing in this universe has 0 chance.
        
               | nickpeterson wrote:
               | Plugging a USB cable into the back of a monitor on the
               | first try without looking is as close as we've ever come
               | to zero chance.
        
               | formercoder wrote:
               | Third try always
        
               | mistermann wrote:
               | The odds do not increase all that much _with_ looking
               | either.
        
               | aspenmayer wrote:
               | USB-C fixes this, only to replace the problem of
               | orientation with the greater specter of alternate mode
               | support, or lack thereof. This is why we can't have nice
               | things.
        
               | 93po wrote:
               | The real life USB C experience has replaced the "which
               | side is up" problem with the "is this cheaply made
               | garbage electronic device going to charge at all with my
               | $80 MacBook USB C charger", which it often does not (and
               | instead requires a USB A to USB C charging cable)
        
               | aspenmayer wrote:
               | I have also seen these issues and always wondered why
               | this happened. There seems to be an issue with the
               | tolerances of USB C compared to A that make C more
               | susceptible to damage and also dirt and dust.
               | 
               | The main issue seems to be lack of resistors in some
               | devices, which leads to USB C not seeing the device to be
               | charged as such, as it isn't negotiating the USB-PD part.
               | USB A doesn't officially implement a power delivery
               | negotiation spec, it's just always on at the charger end,
               | with more amps possibly being negotiated if I'm reading
               | properly.
               | 
               | People seem to be able to resolve this issue with a daisy
               | chain. Devices that usually only work with A to C cables
               | might be able to use a C charger connected to a C to A
               | (female) cord or A to C adapter, which is then connected
               | with a standard A to C cable to the device to be charged.
               | 
               | It's probably easier to keep a USB A charger and A to C
               | cable, but hopefully this helps put your mind at ease
               | that there is a rational explanation.
               | 
               | https://acroname.com/blog/why-usb-c-connections-
               | sometimes-do...
               | 
               | https://plugable.com/blogs/news/understanding-usb-c-
               | charging...
               | 
               | https://en.wikipedia.org/wiki/USB-C
               | 
               | The Reddit post below actually explains how to work
               | around the problem as I mentioned above:
               | 
               | https://www.reddit.com/r/UsbCHardware/comments/w1ismo/how
               | _co...
        
               | toast0 wrote:
               | USB-C only mostly fixes the what side is up problem. I've
               | had devices that degraded to only working with the right
               | side up. Usually from pocket fluff accumulation that can
               | be cleaned out, but still.
        
               | aspenmayer wrote:
               | If I understand the spec properly, the cable isn't truly
               | symmetrical internally and relies on switching to
               | determine which pins are used for which function. It all
               | seems needlessly complicated to my reading, and it seems
               | like Apple's Lightning connector is superior in these
               | respects, although I don't know if it would be capable of
               | performing at USB C's USB3/4 speeds and implement all its
               | modes, but we're unlikely to get a new connector standard
               | anytime soon, possibly a few USB generations at least. By
               | then, the use case for USB is likely to be much different
               | also, so different design choices are likely to be made
               | to respond to future market conditions that are difficult
               | for me to predict, but I hypothesize that by then ad hoc
               | wireless power delivery and data transfer will be much
               | more mature.
        
               | flaminHotSpeedo wrote:
               | Another unfortunate blunder resulting from the
               | complicated design is that usb C female to usb A male
               | adapters are unsafe and prohibited by the usb C spec
               | (because they can be used to make unsafe connectors)
               | 
               | You still see those adapters frequently because this
               | stupid decision would hobble usb C adoption (since it
               | would prevent you from making a usb C peripheral with
               | backwards compatibility for usb A using an adapter) so
               | manufacturers have largely ignored that part of the spec
        
               | aspenmayer wrote:
               | I'm somehow failing to understand the use case you've
               | described and I don't think it's your fault. I've seen
               | devices with female USB C ports, and they're perfectly
               | backward compatible - you either use a C to C cable or A
               | to C cable depending on what is on the other end.
               | 
               | I sometimes see nonstandard A to A cables, however,
               | possibly for the same reasons you've mentioned above, but
               | I think it's usually a cost-saving measure and perhaps
               | easier to implement type A female connectors rather than
               | mini/micro type B, but I have no experience with
               | designing devices, only operating and repairing them.
               | 
               | What is your experience with devices that are backwards
               | compatible with an adapter like you describe? Do you have
               | an example of one, because I can't think of any, not that
               | I doubt they exist.
        
               | toast0 wrote:
               | If you have a usb NIC, chances are it has a male plug so
               | it can connect directly to a computer without an extra
               | cable.
               | 
               | If it has usb A male, it can connect to a large number of
               | computers, but nothing from Apple recently. If it has a
               | usb c male, it can connect to recent Apple computers but
               | has limited ports on other computers and can't connect to
               | older computers.
               | 
               | If it has a usb-c and a usb-a male to usb-c female dongle
               | (often attached to the little bit of cable between the
               | device and the plug), then it will work with everything.
               | 
               | If you clip off the dongle, then you can use it to
               | connect usb c male devices to usb-a female ports in lots
               | of useful applications. It violates the spec, but it's
               | super handy. If you have a usb a male to usb c male
               | cable, you can use the forbidden dongle and the allowed
               | cable to make a forbidden usb a male to usb a male cable
               | which is probably not useful for much.
        
               | aspenmayer wrote:
               | I appreciate your example of a USB NIC, as I am familiar
               | with both USB A and USB C versions of those. I was
               | specifically envisioning devices with female ports, but
               | out of convenience and convention, most peripherals have
               | a built-in/permanment male-terminated cord. Can you think
               | of any examples with a female port?
               | 
               | One of my favorite YouTube creators, DIY Perks, made a
               | video about converting USB connectors to USB C which is
               | very well done, as is their usual standard of quality.
               | 
               | https://www.youtube.com/watch?v=V-vFtiDYiIw
        
               | Keyframe wrote:
               | Exception that proves the rule! Plugging USB-A on the
               | first try equals excalibur out of the stone. Our Arthur
               | is out there, somewhere.
        
               | sixQuarks wrote:
               | Well, you're probably right since it seems like the US
               | govt is foaming at the mouth to start ww3 with both
               | Russia and China.
        
             | yawpitch wrote:
             | I will bet you literally all the money ever printed that we
             | don't.
        
               | Sharlin wrote:
               | That's not how betting works. How much would you _really_
               | bet, your own real money? For example, I'm totally ready
               | to take the bet at merely 1:1000 odds. In 30 years, let's
               | say, I'd owe you a $100 if a probe hasn't broken V1's
               | distance record, and you'd owe me a hundred grand if we
               | have. In today's dollars. Should be a no-brainer if you
               | really think it's impossible.
        
               | rightbyte wrote:
               | It does't work to get fair odds (estimated value 1) when
               | the gains are a nice dinner downtown and a loss might be
               | financial servitude.
        
               | noduerme wrote:
               | One thing's for sure, $100,000 in today's dollars won't
               | buy you dinner by the time the bet's resolved.
        
               | playingalong wrote:
               | Doesn't the phrase "today's dollars" imply the practical
               | value will stay the same?
        
               | netsharc wrote:
               | If we're going to worry about inflation, we might as well
               | worry about the climate burning up our planet.
               | 
               | Maybe I'm being overly pessimistic, but the next ~100
               | years we'll be bothered trying to have enough food and
               | water and killing ~80% (or more) of humans of the planet
               | who want our food, water, and shelter from the extreme
               | weather that we won't be sending anything to chase the
               | Voyagers...
        
               | elzbardico wrote:
               | Nah. This is basically the worst of the worst IPCC
               | scenarios, highly unlikely but for some reason the
               | preferred ones by journalists and self-serving
               | politicians as well as big green industry grifters.
        
               | withinboredom wrote:
               | Back of the napkin math shows it to be the most likely,
               | especially with some of the more recent discoveries in
               | regards to water evaporation and co2 emissions.
               | 
               | IPCC is sorely outdated by this point.
        
               | netsharc wrote:
               | https://www.youtube.com/watch?v=4S9sDyooxf4
               | 
               | TL;DW (poorly): Even IPCC scientists are sort of refusing
               | to believe pessimistic data.
        
               | almost_usual wrote:
               | The only solution is technological advancement.
               | 
               | If humanity doesn't rise to the challenge (degrowth) this
               | could happen.
               | 
               | Fortunately there are smart people all over the world
               | solving problems everyday and that is likely to continue.
        
               | netsharc wrote:
               | As the ancient South Park meme says...
               | 
               | 1. Technological advancement
               | 
               | 2. ?
               | 
               | 3. Climate change fixed
        
               | Sharlin wrote:
               | I could take the bet at 1:100 odds too.
        
               | yawpitch wrote:
               | And that's not how long term bookmaking works, as you've
               | proposed a wager where I am guaranteed to lose at least
               | the time value of my money on either outcome, and I'm
               | _extremely_ confident I'd lose exactly and only that. But
               | I'll happily put down $100 in today's money if a win in
               | 30 years returns a 10% profit over inflation, on the
               | conditions that the probe must be launched from the
               | Earth's surface after the book is made, that it must
               | overtake Voyager 1's then distance inside 30 years, and
               | that it must be actively transmitting at least one piece
               | of meaningful local-condition scientific data back under
               | its own power (for validation of ranging purposes, at
               | least) at that time.
        
               | Etherlord87 wrote:
               | I will bet you 10 times more to the contrary, literally,
               | absolutely :D
        
             | UberFly wrote:
             | On our way to where exactly?
        
               | MattPalmer1086 wrote:
               | One target would be about 500AU out, where you can use
               | the sun as a gravitational lens.
               | 
               | https://en.m.wikipedia.org/wiki/FOCAL_(spacecraft)
        
           | Simon_ORourke wrote:
           | "Always" is a pretty big leap (I hope).
        
             | chumanak wrote:
             | Yes, but it will always be like that
        
           | hinkley wrote:
           | That's the major problem with generation ships. Unless you
           | have a propulsion lab and scientists on the ship, earth will
           | just keep making faster ships and when you arrive at your
           | destination you may discover it has been inhabited for
           | generations by people who left a hundred years after you did.
           | 
           | The power of procrastination is great.
        
             | financypants wrote:
             | I mentioned this point on a HN post a few months ago and
             | someone said that the Voyager was launched at a very
             | beneficial time, leveraging some gravitational pull of some
             | celestial body, so it's unlikely we can just make a faster
             | ship and catch up/surpass it.
        
               | throwaway894345 wrote:
               | Is there any reason that a new generation of ships
               | couldn't leverage the same (or similar, if not better)
               | gravitational pulls that benefited Voyager?
        
               | Rebelgecko wrote:
               | The "Grand Tour" alignment that Voyagers were initially
               | intended to take advantage of only happens once every 175
               | years (although if the goal is just max speed I don't
               | know if favorable conditions happen more often than that)
        
               | guidoism wrote:
               | That's just a standard chemical rocket for the initial
               | push and then a few gravity assists right?
               | 
               | Couldn't an ion engine with a nuclear reactor providing
               | the electricity accelerate more over that period? I'm
               | genuinely curious, I don't know the answer.
        
               | Sparkyte wrote:
               | Even an ion engine needs fuel. We shot out Voyager 1 in
               | 1977. It has traversed 47 years of distance.
               | 
               | There has been the talk of solar sails as well, but
               | gravity assist propulsion is already so much easier to
               | achieve for satellites.
        
               | hinkley wrote:
               | If I thought 17 km/s was even half of the fastest we
               | would ever go, I'd have to give up a lot of dreams for
               | the future. Since I'm not prepared to do so I will stick
               | out my proverbial tongue at this assertion.
        
             | somenameforme wrote:
             | This gets really interesting, and weird, if we're ever able
             | to start making ships capable of approaching relativistic
             | rates. You could arrive at the destination after 500 years,
             | only to discover that humans colonized it 50,000 years ago.
             | 
             | For those who may not know, the speed of light isn't really
             | a speed limit per se. If you have a button that gives you
             | an acceleration of 1km/s, nothing stops you from hitting it
             | 300,000 times in a row (with the speed of light being
             | ~300,000km/s), or even a billion. Instead the entire
             | universe begins to distort with distances becoming
             | literally physically closer, and with rate of time itself
             | also changing (length contraction + time dilation are the
             | terms).
             | 
             | It has the interesting implication that if we could ever
             | create a ship that "just" accelerates at 1g, you could
             | travel essentially anywhere in the universe, even if it's
             | billions of light years away, in a single human lifespan!
             | [1] So for instance the distance to the closest galaxy,
             | Canis Major, is about 25,000 light years. You could get
             | there in our 1g ship in less than 20 years. Of course,
             | 25,000 years would genuinely have passed in the interim, so
             | you get all sorts of fun paradoxes and oddities. And the
             | oddities are exponential, so you could travel a billion
             | light years in 40 years.
             | 
             | And this isn't just hypothetical or whatever. Time dilation
             | plays a major role in many things, like particle
             | accelerators. Unstable emergent particles end up 'living'
             | for _far_ longer than they should thanks to the fact they
             | 're moving at near light speed relative to us, which means
             | that time is [relatively] passing for it more slowly than
             | for us.
             | 
             | [1] - http://convertalot.com/relativistic_star_ship_calcula
             | tor.htm...
        
           | cdelsolar wrote:
           | The nuclear launched manhole cover is likely further
        
         | User23 wrote:
         | I'm interested in the biopic about the engineer that fixed
         | this. Anyone know anything?
        
       | flextheruler wrote:
       | What are the theoretical risks to sending out these beacons...
       | our we at all, as a species, significantly increasing the chance
       | of another life form more advanced than us discovering us by
       | doing this?
       | 
       | If we come into contact with a significantly advanced life form
       | it would certainly lead to ineffable destruction.
       | 
       | Deep space probing without the ability to exert any sort of
       | defense if discovered seems risky. I know the chances are low but
       | what's the ROI on sending this stuff out without being remotely
       | prepared for contact. I think another comment was saying the data
       | we've collected has mostly just been used to confirm preexisting
       | theories. If that's all we're getting out of it I'm apprehensive.
       | 
       | I'm just a layman but I'd feel much better if we can establish
       | control, knowledge and dominance of our solar system and its
       | celestial bodies first.
       | 
       | I'm genuinely asking not a conspiracy theorist.
        
         | onion2k wrote:
         | If an alien species can spot something as tiny as Voyager but
         | doesn't notice our activity on Earth which is just a stone's
         | throw away, I doubt they're a threat.
         | 
         | If an alien species finds Voyager in 10,000 years and tracks it
         | back to our planet, they'll find some interesting remains of
         | our civilization.
        
           | shash wrote:
           | More like 10,000,000,000 years at least. The closest star is
           | 4.26 light years away. At current speeds (~65000 km/h) it'll
           | take 40,767,123 years to reach. _IF_ it's going in the right
           | direction.
           | 
           | It's doubtful they'll even find the sun in its current phase
        
             | The_Colonel wrote:
             | You're off by a couple of magnitudes. Voyager travels the
             | distance of one light year in about 18 000 years.
        
             | iamgopal wrote:
             | They could invent Tele transportation and Time Machine
             | which essentially the same thing.
        
             | onion2k wrote:
             | That suggests aliens won't find Voyager until it reaches
             | their star system. If that's the case they probably aren't
             | an interstellar species, and they'll never find us, or
             | visit us. I was assuming they'd detect it while travelling
             | through space.
        
           | konschubert wrote:
           | Why so pessimistic.
        
             | onion2k wrote:
             | The numbers are against us.
        
         | RichardLake wrote:
         | The chance of another live form discovering us due to the
         | Voyager probes is ~0. Atmospheric changes and EM emissions from
         | Earth are both detectable from far longer ranges.
        
         | speedylight wrote:
         | From what I understand space is full of errant radio signals
         | that are not generated by us, the beacons we send to voyager or
         | it to us is most likely indistinguishable from the multitude of
         | others in the same region.
         | 
         | I think the idea of an alien race attacking us is sort of a
         | catch 22 because if they're able to attack us (technologically
         | speaking), then they wouldn't perceive us as a threat because
         | we would be insignificant in comparison to their power.
        
           | lukan wrote:
           | "From what I understand space is full of errant radio signals
           | that are not generated by us"
           | 
           | But stars and other natural sources emit a different radio
           | signal than all the things we have on earth, that we transmit
           | into space.
        
         | yawpitch wrote:
         | How do I put this gently?
         | 
         | Your species is already extinct.
         | 
         | Your species is really just waiting to find out what caused
         | that extinction.
         | 
         | That cause, almost certainly, will have been its own actions in
         | its own local environment.
         | 
         | Essentially, your species will almost certainly have shit in
         | its own backyard, and eventually its mouth, to death.
         | 
         | It will likely do so within the next 100,000 years.
         | 
         | The odds of Voyager, or any, emission or artifact made by your
         | species being encountered by another life form capable of all
         | of receiving it, recognizing it, understanding it, and
         | responding to it in any manner within that timeframe is,
         | essentially, zero. Not precisely zero, but near enough.
         | 
         | The odds of that species having malevolent intent and arriving
         | in time to do anything but engage in archaeology? Now you're
         | reaching actual zero.
         | 
         | Worrying about this particular existential risk isn't just
         | premature, it's prenatal.
        
           | thih9 wrote:
           | Species go extinct but also evolve. In 100000 years today's
           | civilizations might fall but there would still be some carbon
           | based lifeforms. Perhaps tiny, furry humans; maybe with a
           | dislike for digging up fossil fuels.
        
             | yawpitch wrote:
             | Kind of definitionally if it goes extinct it's done
             | evolving. And sure, plenty of carbon-based life forms --
             | currently all known life forms -- will survive, and
             | hopefully whatever does is smart enough to learn from our
             | own-goals. It may even be another primate or another
             | hominid... what it won't be is us.
        
               | thih9 wrote:
               | Note that on a cosmic scale, hominid, primate, or even
               | carbon based might count as us. On a human scale, after
               | 100000 years it wouldn't be us in any case.
        
           | The_Colonel wrote:
           | Civilizations will collapse, but self-eradication might be
           | quite difficult.
        
             | lolc wrote:
             | Get our reproduction cycle to be based on advanced tech.
             | Then let society collapse so it doesn't have the tech
             | anymore. Will take a few generations still.
        
         | yonatan8070 wrote:
         | If the could decode it, the Golden Record [1] onboard Voyager
         | will point them directly at us, if anyone ever finds it. I
         | doubt that's going to happen, simply because of how small the
         | spacecraft is and how insanely large the universe is.
         | 
         | [1] https://en.m.wikipedia.org/wiki/Voyager_Golden_Record
        
         | bertylicious wrote:
         | > If we come into contact with a significantly advanced life
         | form it would certainly lead to ineffable destruction.
         | 
         | This is such a very human thing to say. Why are you humans
         | always projecting your own insecurities onto others like that?
         | We've been among you for millennia now and the only ones
         | destroying your species are you yourselves.
        
           | Culonavirus wrote:
           | Pffft... Says the species that abducts and anal probes their
           | cosmic neighbors!
        
             | nativeit wrote:
             | Most cosmic neighbors have evolved to enjoy a good firm
             | anal probe by way of introduction. We are the weird ones,
             | yet again, in our distaste for getting thoroughly probed.
        
           | nativeit wrote:
           | You answered your own question, there, Berty.
        
         | asp_hornet wrote:
         | One of the theories floated is if an advanced civilisation made
         | it to us, they would most likely be so advanced they would see
         | us no differently as we would view ants and not even consider
         | us if they needed any resources from our planet.
         | 
         | Another thought is the fact that no advanced civilisation has
         | ever made it to earth is proof that any intelligent species is
         | destined to destroy itself before it can evolve far enough to
         | travel the stars.
         | 
         | Both outcomes are pretty bleak
        
           | Filligree wrote:
           | Or it could be that inflation never ended and there's a
           | rapidly increasing number of vacuum collapse bubbles inside
           | it, like ours, in which case approximately every civilisation
           | is the first to exist in their bubble.
        
           | cableshaft wrote:
           | > Another thought is the fact that no advanced civilisation
           | has ever made it to earth is proof that any intelligent
           | species is destined to destroy itself before it can evolve
           | far enough to travel the stars.
           | 
           | Looking like our planet might prove this one to be pretty
           | close to accurate at least in our case, within the next
           | hundred years or so. If not from nuclear war then from
           | running extremely low of key resources on the planet and
           | suffering a massive conventional war over the remaining
           | resources.
           | 
           | Freshwater alone seems like it can cause it. We already have
           | major cities almost entirely running out of fresh water (see
           | Mexico City this year). Western US came worrying close with
           | Lake Mead's water level a couple years ago too, but
           | thankfully it eventually started raining enough to replenish
           | it again.
        
             | marcosdumay wrote:
             | > Looking like our planet might prove this one to be pretty
             | close to accurate at least in our case
             | 
             | Sorry, but modern Doomerism needs at least a dozen more
             | orders of magnitude on its confidence that we'll all die
             | before it can claim any part in Fermi's paradox.
        
         | rl3 wrote:
         | > _I know the chances are low but what's the ROI on sending
         | this stuff out without being remotely prepared for contact._
         | 
         | In response to the alien threat, this council of nations has
         | chosen to activate the XCOM project.
         | 
         | https://www.youtube.com/watch?v=YPvbF7bG7lk
        
         | cess11 wrote:
         | Why does 'advancement' imply genocidal results?
        
           | mistermann wrote:
           | Anthropomorphism.
        
           | Muromec wrote:
           | Because of the founding sin of American continent, from where
           | said probe was sent during the very overtly genocidical 20th
           | century.
        
         | smolder wrote:
         | I think we're vastly more likely to destroy ourselves with
         | resource depletion as opposed to the paranoid "dark forest"
         | outcome from three body problem. I wouldn't be surprised if we
         | get to "oh, hey. What's up?" as far as alien communication and
         | that's it.
        
           | JackFr wrote:
           | What resource's depletion do you imagine is going to do us
           | in?
           | 
           | I'm somewhat skeptical of climate change causing a
           | civilization ending process, yet I find that vastly more
           | likely than us running out of something.
        
             | smolder wrote:
             | Breathable air, drinkable water, arable land -- something
             | like that which is probably preceded by severe climate
             | change and ecological collapse.
        
         | belter wrote:
         | They know we are here. Currently in Cosmic terms we are at the
         | level of Sentinel Island. A natural reserve to be left
         | alone....
        
         | gumby wrote:
         | > [are] we at all, as a species, significantly increasing the
         | chance of another life form more advanced than us discovering
         | us by doing this?
         | 
         | This topic is explored in:
         | https://en.wikipedia.org/wiki/Star_Trek%3A_The_Motion_Pictur...
        
         | mistermann wrote:
         | > If we come into contact with a significantly advanced life
         | form it would certainly lead to ineffable destruction.
         | 
         | I would expect an advanced form of life to be nice. Maybe
         | humans will aspire to that some day too.
        
           | tzs wrote:
           | I'd also expect an advanced form of life to have discovered
           | game theory and analyzed potential interaction with other
           | civilizations as a sequential game with imperfect information
           | (I'm assuming no FTL so nobody has current knowledge of
           | anyone else's capabilities).
           | 
           | The results are pretty scary. PBS Space Time had an episode
           | on this recently [1] which goes into more detail. Briefly, if
           | you put survival of your planet over all else, "destroy
           | aliens as soon as you become aware of them" has a better
           | outcome for you than "contact them" or "ignore them".
           | 
           | It's the speed of light limit that is the problem with the
           | "contact them" option. If they are not nice and go for
           | destroying you, which they do by sending some heavy masses at
           | you at relativistic speeds, you don't find out about until it
           | is too late to launch a counter attack so there's no "mutual
           | assured destruction" deterrent like the one that has kept us
           | from using civilization ending weapons on Earth.
           | 
           | The Space Time episode does go into possible reasons that
           | advanced aliens might not value their own survival so highly
           | that the risk of them being destroyed by not picking
           | "destroy" is outweighed by the benefits of contact or
           | ignoring others.
           | 
           | [1] https://www.youtube.com/watch?v=aXYf47euE3U
        
         | f6v wrote:
         | My way of thinking about it is that a civilization capable of
         | interstellar travel has enough energy and resources (which is
         | probably the same) to terraform any "free" planet to their
         | liking. For all we know, space is mostly devoid of any life. So
         | you can build intergalactic empire for 100,000 years and still
         | not encounter anyone. I see no point for such advanced species
         | to conquer someone. The Dark Forest is an interesting concept
         | but seems unlikely.
        
       | demondemidi wrote:
       | "speak"
       | 
       | "package"
       | 
       | "touch up"
       | 
       | Odd that the writer called out these words in quotes in the midst
       | of metaphors that were more obvious. I missed the article on the
       | first read through because the writing was so bad.
       | 
       | Anyway, on second read through: amazing they were able to keep
       | teams on this project for nearly five full decades who can still
       | debug this old hardware. Amazing longevity. Talk about
       | maintenance of a code base. 15 billion miles to push a patch.
       | Amazing.
        
       | mrweasel wrote:
       | The quality of the build of Voyager and the software is nothing
       | short of amazing.
        
       | fukpaywalls2 wrote:
       | Voyager 1 was created in an long by gone era where technological
       | obsolescence was unheard of.
        
         | tchbnl wrote:
         | Or it was specced and engineered for a long life in the
         | harshness of outer space. You can't compare it to a 1950s
         | fridge.
        
       | kleiba wrote:
       | Amazing! I have a feeling this thing is going to keep on trucking
       | well into the 2270s...
        
         | jeffrallen wrote:
         | Physics agrees (momentum). Information theory (signal vs noise
         | floor) would beg to differ with you.
        
         | mnau wrote:
         | Voyager is powered by RTG, with half life 87.7 years. It's
         | going to run out of energy before that.
        
           | kleiba wrote:
           | Ah, right, sorry. I confused it with Voyager 6.
        
       | somat wrote:
       | I always joke that NASA should win the nobel prize in engineering
       | for their work on the mars rovers. where the punchline is that
       | there is no nobel prize for engineering... I didn't say it was a
       | good joke.
       | 
       | But the voyager missions... wow. NASA should totally win the
       | nobel prize in engineering for them. What an accomplishment.
        
         | westurner wrote:
         | An annual Space Prize, for Engineering.
         | 
         | Maybe people with bonuses these days could fund a prize
         | committee in perpetuity like Alfred Nobel, who invented dyn _o_
         | mite.
        
         | enginoor wrote:
         | The Voyager team did win the 1980 Collier Trophy which is the
         | nobel prize of aerospace.
         | 
         | https://en.wikipedia.org/wiki/Collier_Trophy
        
       | Dalewyn wrote:
       | Hell yeah!
        
       | torcete wrote:
       | So, a memory chip was damaged? And if that is the case, a cosmic
       | ray did it?
       | 
       | [..] "Further sleuthing revealed the exact chip causing the
       | problem, which allowed them to find a workaround. After the team
       | relocated the code to a new location in the FDS, Voyager 1
       | finally sent back intelligible data on April 20, 2024"
        
       | mritchie712 wrote:
       | map of where Voyager 1 and 2 are currently:
       | https://voyager.jpl.nasa.gov/mission/status/#where_are_they_...
        
         | beezle wrote:
         | Someone at NASA/JPL might want to correct this page:
         | 
         | https://science.nasa.gov/mission/voyager/where-are-they-now/
         | 
         | which has (as this writing) them "millions" of miles away
         | instead of billions.
         | 
         | Interestingly, it was only last July that Vger 2 passed Pioneer
         | 10 to become the second furthest probe.
        
       | kumarvvr wrote:
       | Is there any detailed technical write up as to how various issues
       | with the Voyager, over the years have been resolved?
        
       | willcipriano wrote:
       | With the speed of light being a hard limit, should be sending out
       | more probes like this with more and more advanced sensor tech so
       | that our children can see far away things. They will need to know
       | where to send the generation ships.
        
         | shultays wrote:
         | Voyager 1 was sent using a slingshot that made it possible to
         | achieve its speed. It was a rare opportunity during that time
         | (I did a quick google but couldn't find how rare it was or when
         | we would get such another opportunity)
        
           | collinmanderson wrote:
           | "rare planetary alignment occurring once every 175 years"
           | according to https://en.m.wikipedia.org/wiki/Voyager_program
        
       | kgeist wrote:
       | >After the team relocated the code to a new location in the FDS,
       | 
       | I wonder what the protocol for sending update requests is. It
       | sure must be encrypted? If so, what if the encryption algoritm is
       | weak by modern standards, given Voyager 1 is 46 years old, and
       | can be reverse engineered somehow? I.e. can someone outside of
       | NASA send requests to Voyager to change its code?
        
         | Schiendelman wrote:
         | Perhaps it's theoretically possible. But honestly, it's likely
         | no one would.
         | 
         | Most people hacking into systems are doing so for financial
         | gain or reputational gain. Neither exists here - there's
         | especially no positive reputation to be had in hacking
         | something 46 years old that likely can't be fixed again after
         | you do.
         | 
         | There are plenty of vandals out there who don't care about
         | anything, but the probability one of them would have the skills
         | and hardware necessary to do this is nil.
        
           | sneak wrote:
           | > _Perhaps it's theoretically possible. But honestly, it's
           | likely no one would._
           | 
           | > _Neither exists here - there's especially no positive
           | reputation to be had in hacking something 46 years old that
           | likely can't be fixed again after you do._
           | 
           | This is perhaps the most plainly wrong thing I have read in a
           | long time. Being able to claim "I hacked Voyager" is one of
           | the most ultimate hacker flexes one could possibly perform.
           | 
           | A long long time ago I read an account (which may have been
           | fiction, but had too many details to be casually dismissed)
           | on a very private BBS of someone hacking a NASA space probe
           | over many months. I think it is ridiculous to assume that
           | nobody would try to do this.
        
         | qingcharles wrote:
         | Considering people have hacked other space probes, I would
         | guarantee there is no encryption on the communications. See,
         | e.g.:
         | 
         | https://en.wikipedia.org/wiki/International_Cometary_Explore...
         | 
         | Apparently this says no encryption, though I've not read the
         | whole thing:
         | 
         | https://descanso.jpl.nasa.gov/DPSummary/Descanso4--Voyager_n...
        
         | waz0wski wrote:
         | > can someone outside of NASA send requests to Voyager to
         | change its code?
         | 
         | Unless you've got your own very-very high power transmitters
         | and large dishes, you're not communicating with either Voyager
         | satellite
         | 
         | "Newer" science & research satellites from the late 2000s
         | onward do support a variety of encryption in transit and
         | authentication from the ground stations
        
         | ForHackernews wrote:
         | > It sure must be encrypted?
         | 
         | I very much doubt it. There are hard physics limitations at
         | play. Nasa's Deep Space Network [0] is the only system on Earth
         | capable of communicating with the Voyager probes. If an
         | attacker managed to secretly construct a 70-meter dish and
         | reverse-engineer a poorly-documented 50 year old protocol I
         | would only be impressed.
         | 
         | [0]https://www.nasa.gov/directorates/somd/space-
         | communications-...
        
       | cancerboi wrote:
       | How did the Voyagers avoid hitting asteroids when exiting the
       | solar system? I thought there was a huge cloud of asteroids
       | surrounding our solar system.
        
         | tombert wrote:
         | I know nothing about astronomy, but aren't the gaps between
         | asteroids pretty huge? Like hundreds of thousands of miles?
         | 
         | I would think if they were close they would just clump together
         | under gravity.
        
         | davidmurdoch wrote:
         | Space is really really big. The astroids are tiny and not close
         | to each other.
        
         | analog31 wrote:
         | Even the "dense" asteroid belt isn't all that dense, so the
         | actual probability of getting whacked by something is pretty
         | low.
        
         | liversage wrote:
         | The asteroid belt is between the orbits of Mars and Jupiter so
         | the Voyagers traveled through this before reaching their first
         | mission goal, Jupiter.
        
         | furyofantares wrote:
         | You're getting answers about the asteroid belt because you said
         | asteroids, but I believe your question is about the Oort cloud
         | (comets) since you said surrounding the solar system.
         | 
         | From wikipedia;
         | 
         | > Space probes have yet to reach the area of the Oort cloud.
         | Voyager 1, the fastest[60] and farthest[61][62] of the
         | interplanetary space probes currently leaving the Solar System,
         | will reach the Oort cloud in about 300 years[6][63] and would
         | take about 30,000 years to pass through it.
        
         | Hikikomori wrote:
         | Space has a lot of space.
        
         | Zren wrote:
         | https://www.darthsanddroids.net/episodes/0996.html
         | 
         | > Leia: Chewie, get up here! We're going into an asteroid
         | field! > Han: That's no problem. Just don't hit whatever
         | asteroid might be within a hundred thousand kilometres. > Han:
         | They're in nice stable orbits too, so it's easy to avoid them.
         | > Leia: Okay, fine. We're going into a massive region of
         | randomly moving, closely packed, enormous giant space rocks. >
         | Han: Gaaaaaah!
        
         | bsder wrote:
         | > How did the Voyagers avoid hitting asteroids when exiting the
         | solar system? I thought there was a huge cloud of asteroids
         | surrounding our solar system.
         | 
         | The same way the Saturn probes went right through the rings and
         | didn't hit anything.
         | 
         | Even if it looks like a "cloud" or "ring", that doesn't mean
         | that it is "dense". There are _whopping_ distances between
         | objects in space.
         | 
         | It is way, way, way more difficult to actually "hit" something
         | in space than it is to avoid something.
        
       | arisAlexis wrote:
       | The aliens fixed it
        
       | liendolucas wrote:
       | How they have achieved this to me is completely dark magic.
       | Exotic wizardry. Kudos to the team for bringing it back to life!
       | Meantime on planet earth we need to change our phones and
       | technology gadgets faster than our underwear.
        
       | ChrisArchitect wrote:
       | [dupe]
       | 
       | Some more on official post:
       | https://news.ycombinator.com/item?id=40676221
        
       | jazzgott wrote:
       | Voyager 1 is expected to shut down around 2025 because its power
       | source, the Radioisotope Thermoelectric Generators (RTGs), is
       | running out of juice. These RTGs have been gradually losing power
       | since the spacecraft was launched in 1977. As the power drops,
       | Voyager will have to turn off its scientific instruments and
       | other systems, eventually going silent after an amazing run.
        
         | iso8859-1 wrote:
         | It's a https://en.wikipedia.org/wiki/MHW-RTG
        
       | ck2 wrote:
       | Instead of the next billion dollar war machine, let's build a
       | railgun on the moon to launch tic-tac sized probes near 1% speed
       | of light in all directions (including past voyager 1)
        
         | citizenpaul wrote:
         | Great idea probably not feasable. The military even with their
         | effectivly unlimited budget recently ended their rail gun
         | programs. One of the main reasons being they require too much
         | maintenance/unreliable. I doubt the moon will be a place that
         | can have effective repair trips.
        
           | ck2 wrote:
           | They can build it using bots.
           | 
           | Develop the bots in the deserts. If they can make them move
           | about and assemble/repair things in a desert, they can handle
           | moon dust.
           | 
           | Granted it's at least a decade long project. But once we've
           | got the bots with AI, they never get tired and can keep
           | building.
           | 
           | Alternately I guess we can slingshot stuff off the sun like
           | the Parker Probe (0.06% speed of light, it's a start)
        
         | Muromec wrote:
         | Space tech is byproduct of military research into ICBM, i.e.
         | nuking the hell out of everyone all at once. Since the cold war
         | end, it's all defunded and not cool. Now the hype is back, so
         | is the funding.
        
       | Sparkyte wrote:
       | The ability of NASA to keep this system alive is remarkable. They
       | had an expected expiration on Voyager 1 and this far exceeds it.
       | If we could only get such reliability in stuff we bought today.
       | :(
        
       | Sporktacular wrote:
       | Great, now it's back on track to return in a few centuries as a
       | destructive sentient cloud entity and threaten civilisation.
       | Thanks a lot NASA.
        
       | icemelt8 wrote:
       | Its mind blowingly shocking to me, how are they updating the
       | software from so far away? how are they fixing the issues?
        
       | hgyjnbdet wrote:
       | I remember reading an article years ago about how programmed, and
       | what with, the voyager missions. Really with I could find it.
        
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