[HN Gopher] Radar evidence of accessible Moon cave conduit below...
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       Radar evidence of accessible Moon cave conduit below Mare
       Tranquillitatis pit
        
       Author : rntn
       Score  : 89 points
       Date   : 2024-07-15 16:09 UTC (6 hours ago)
        
 (HTM) web link (www.nature.com)
 (TXT) w3m dump (www.nature.com)
        
       | netcraft wrote:
       | I always love it when new science is done with old observations
        
       | krunck wrote:
       | I hate it when scientific results are behind a paywall.
        
         | CamperBob2 wrote:
         | Results that we, the taxpayers, already paid for.
        
         | bryant wrote:
         | Email the authors. They tend to be happy to share copies.
        
           | dorkwood wrote:
           | Have you done this yourself?
           | 
           | I've tried it in the past after reading a blog post about its
           | effectiveness. I am yet to receive a response.
        
           | TaylorAlexander wrote:
           | Would be cool if there were some sort of world wide...
           | connection system of some sort so the authors could share
           | their data without needing to respond to individual emails.
        
       | teepo wrote:
       | Found this at least [1]: "In 2010, as part of the ongoing Luna
       | Reconnaissance Orbiter (LRO) NASA mission, the Miniature Radio-
       | Frequency (Mini-RF) instrument acquired data that included a pit
       | in Mare Tranquilitatis," said Professor Lorenzo Bruzzone in a
       | statement. "Years later we have reanalysed these data with
       | complex signal processing techniques we have recently developed,
       | and have discovered radar reflections from the area of the pit
       | that are best explained by an underground cave conduit. This
       | discovery provides the first direct evidence of an accessible
       | lava tube under the surface of the Moon."
       | 
       | [1] https://www.iflscience.com/the-first-cave-has-been-found-
       | on-...
        
         | jvanderbot wrote:
         | I can't help but think of the Moon is a Harsh Mistress every
         | time I hear this news.
        
           | kibwen wrote:
           | I think it sounds more like _The Lotus Caves_ :
           | https://en.wikipedia.org/wiki/The_Lotus_Caves
        
         | dylan604 wrote:
         | So we're now saying the specific type of cheese that the moon
         | is made from is Swiss?
        
           | klyrs wrote:
           | This has long been suspected due to the spheroidal
           | indentations in the lunar surface.
        
             | madaxe_again wrote:
             | This is a remnant of the Great Fondue period shortly after
             | the moon's creation.
        
           | dunham wrote:
           | It's Wensleydale, as documented in "A Grand Day Out".
        
             | tailspin2019 wrote:
             | That documentary was full of holes.
        
           | mcswell wrote:
           | Yes, but who cut the cheese?
        
             | CapeTheory wrote:
             | That would be the vending machine on the skis.
        
       | rbanffy wrote:
       | There is a little bit more info at
       | https://www.media.inaf.it/2024/07/15/tubi-lavici-lunari/ (in
       | Italian)
        
       | floxy wrote:
       | I suppose the Artemis III landing location is probably set in
       | stone at the south pole, and even if it weren't, there probably
       | wouldn't be enough time to explore a cave. Maybe we can get some
       | hopping pit-bots there sooner rather than later:
       | 
       | https://arxiv.org/abs/1701.07799
        
         | UberFly wrote:
         | Totally. I can't wait for the photos at some point. The caves
         | must have just moved to somebodies shortlist.
        
           | imglorp wrote:
           | This would also change the mars vs moon colony equation. A
           | ready made radiation shelter of substantial volume means none
           | of that shielding or digging equipment would need to be
           | brought from Earth. Move-in ready.
        
             | evaneykelen wrote:
             | There likely are lava tubes on Mars too:
             | https://en.wikipedia.org/wiki/Martian_lava_tube
        
         | wongarsu wrote:
         | Similarly the Chinese program is so far only planning for
         | landings and a moon base at the south pole. But I wouldn't be
         | surprised if China squeezes in an extra manned or rover mission
         | to investigate this. It'd be a pretty cheap win for their Moon
         | program over Artemis.
        
           | kjkjadksj wrote:
           | I imagine there is a massive benefit to trying to secure and
           | claim this cave before others have a chance to. Turn key
           | Cheyenne mountain complex on the moon with little complex
           | lunar excavation required? Yes please, says every nations
           | strategic space command at once. I wouldn't be surprised if
           | there were more such sites, undisclosed for fear of
           | competition settling on the site, but already identified for
           | future basebuilding purposes.
        
       | rbanffy wrote:
       | I guess we'll need to develop climbing equipment for astronauts.
       | It's a 120m wall with a 25m cave under it.
       | 
       | I'm also betting the cave has a sizeable ice trap in it.
        
         | IIAOPSW wrote:
         | lunar gravity
        
           | rbanffy wrote:
           | and a jetpack
        
         | wizardforhire wrote:
         | Maybe something like this?
         | 
         | https://youtube.com/watch?v=qL1WqN1XKK0&pp=ygUdU3RhcnRyZWsgN...
        
           | wongarsu wrote:
           | We could also go retro:
           | 
           | https://www.youtube.com/watch?v=gYsSsdplqLg
           | 
           | NASAs space-grade version was a bit bulkier, but same idea
           | 
           | https://www.youtube.com/watch?v=RvnC--JjDBw
           | 
           | Sadly the modern space version is far less useful because of
           | safety concerns.
        
         | 1970-01-01 wrote:
         | Get on your NASA minibike [0] and gain enough momentum to ride
         | up the cave wall and out of the hole.
         | 
         | [0] https://pulispace-blog-
         | hu.translate.goog/2012/03/31/a_holdmo...
        
           | rbanffy wrote:
           | The wall is quite vertical. You can drive a screw-like
           | trajectory on the walls if you are fast enough.
        
       | bloopernova wrote:
       | Could you imagine being the first person to ever explore an
       | underground cave system on another planet?
       | 
       | On Mars, maybe stromatolites or other bacteria live in these
       | caves!
        
         | stragies wrote:
         | Hollywood has made lots of movies where this person then goes
         | on to inadvertently kill us all when they get home to earth. Or
         | crash-land, or ..
        
         | lelanthran wrote:
         | > Could you imagine being the first person to ever explore an
         | underground cave system on another planet?
         | 
         | I think there's a documentary on that:
         | https://www.imdb.com/title/tt0078748/
        
           | bazzargh wrote:
           | more appositely https://en.wikipedia.org/wiki/First_Men_in_th
           | e_Moon_(1964_fi...
           | 
           | if we do find a note in the cave saying claimed on behalf of
           | Queen Victoria...probably best to leave.
        
             | irrational wrote:
             | > they discover a battered Union Jack flag on the surface
             | and a handwritten note, dated some 65 years earlier,
             | claiming the moon on behalf of Queen Victoria. Stranger
             | still, the note is written on the back of a court summons
             | for one Katherine Callender from the village of Dymchurch
             | in England.
             | 
             | This reads like the beginning of a Doctor Who episode.
        
               | bazzargh wrote:
               | Nigel Kneale, who wrote the screenplay, famously wrote
               | Quatermass, so you're in the right area - that was a big
               | influence on early Who. Kneale hated the idea of Doctor
               | Who though, and refused to write for it - he said "It
               | sounded a terrible idea and I still think it was."
               | (specifically, he hated that it was designed to frighten
               | small children)
        
         | brcmthrowaway wrote:
         | It was probably visited by the Annunaki living on planet X
        
         | ancientworldnow wrote:
         | The best part of caving as a sport and science is that you can
         | find and explore virgin systems here on Earth still.
        
       | malaretv wrote:
       | NAC Imagery of one such pit in Mare Tranquillitatis
       | 
       | https://quickmap.lroc.asu.edu/layers?prjExtent=941477.606759...
        
       | system2 wrote:
       | Why aren't these findings or studies published as blog format?
       | You'd think these would be available to humanity in 2024.
        
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       (page generated 2024-07-15 23:01 UTC)