Posts by mustapipa@scicomm.xyz
(DIR) Post #AS6qEwUxqwuJdHoj3o by mustapipa@scicomm.xyz
2023-01-28T17:45:05Z
0 likes, 1 repeats
Earthlike #planets should readily form around other stars, meteorite data suggests.Samples from space rocks suggest water and light elements are present in warm inner part of planet-forming disks.For a long time, planetary scientists thought Earth was a lucky accident, enriched with water and lighter volatile elements by asteroids.But a series of new studies suggests all the ingredients were much closer at hand when Earth was born.#astronomy #exoplanetshttps://www.science.org/content/article/earthlike-planets-should-readily-form-around-other-stars-meteorites-suggest
(DIR) Post #ASF0rtAgi5d9PjDpoG by mustapipa@scicomm.xyz
2023-01-31T09:13:16Z
0 likes, 1 repeats
Astronomers say they have spotted the #universe’s first #stars These long-sought “Population III” stars would have been ginormous balls of #hydrogen and #helium sculpted from the universe’s primordial gas."We exist, therefore we know there must have been a first generation of stars."#astronomyhttps://www.quantamagazine.org/astronomers-say-they-have-spotted-the-universes-first-stars-20230130/
(DIR) Post #ASX9rIOoozUGoSl63c by mustapipa@scicomm.xyz
2023-02-10T05:51:48Z
0 likes, 1 repeats
Water-worlds, also known as ocean worlds, are #planets that possess liquid water either directly on their surfaces, such as Earth, or somewhere beneath it, such as #Jupiter's moon, Europa and #Saturn's moon, Enceladus.But planets containing a significant fraction of their total mass (10%–50%) in water might be extremely rare or nonexistent after all.#exoplanets #astronomyhttps://phys.org/news/2023-02-astronomers-population-ocean-world-exoplanets.htmlPaper by Rogers et al. (2023):https://arxiv.org/abs/2301.04321
(DIR) Post #ASbEgdS7c7t7SElpnk by mustapipa@scicomm.xyz
2023-02-12T08:55:12Z
0 likes, 1 repeats
Light pollution has cut humanity’s ancient connection with the #stars.Dedrinental to amateur and professional astronomers as well as wildlife, light pollution is also wiping out our cultural heritage that taught us about life, universe and everything.We learned #mathematics and #physics through the 5000 stars visible for the unaided eye. We must not lose our connection to stars in a dark sky.#astronomyhttps://theconversation.com/light-pollution-has-cut-humanitys-ancient-connection-with-the-stars-but-we-can-restore-it-198035
(DIR) Post #ASuDES5pqXCUAGa9Vw by mustapipa@scicomm.xyz
2023-02-21T12:12:47Z
0 likes, 0 repeats
@mszll @brembs The irony.
(DIR) Post #ATDWTLEFkpbNRrd1CS by mustapipa@scicomm.xyz
2023-02-26T18:08:56Z
0 likes, 1 repeats
Three #planets.One with a high surface #habitability and biodiversity that gave rise to a technological civilisation.The others are a hot rocky world with runaway greenhouse effect and a cool gaseous giant #planet.#astronomy
(DIR) Post #ATL5IY6KZjv1okQoJE by mustapipa@scicomm.xyz
2023-02-28T20:27:01Z
0 likes, 1 repeats
Identifying unequivocal signs of life on #Mars is one of the most important objectives for sending missions to the red #planet.But detecting signs of Martian life would be very difficult when determined based on analysis of similar geological rock formations found in the #Atacama desert.Dark microbiome and extremely low organics in Atacama fossil delta unveil Mars #life detection limits.#astrobiologyhttps://www.nature.com/articles/s41467-023-36172-1
(DIR) Post #ATQzsvQ5v8LXmuOhv6 by mustapipa@scicomm.xyz
2023-02-23T18:34:30Z
0 likes, 1 repeats
Night skies are getting 9.6% brighter every year as light pollution erases #stars for everyone.The situation is dire for astronomers, astrophotographers, and everyone else who is interested in looking up and taking a look at the tranguility of the ocean of stars.The stars in the sky taught us #mathematics and #physics, but now we are collectively forgetting its beauty.#astronomy #astrophotography https://theconversation.com/night-skies-are-getting-9-6-brighter-every-year-as-light-pollution-erases-stars-for-everyone-199383
(DIR) Post #ATbgFsa2mbfpIUHKHw by mustapipa@scicomm.xyz
2023-03-14T12:34:53Z
0 likes, 1 repeats
Yhteyttäminen on maanpäällisen elämän perustuotantoa, joka mahdollistaa pitkät ravintoketjut ja -verkostot.Mutta mahdollisuus siihen riippuu monesta tekijästä, kuten planeetan kaasukehän paksuudesta ja läpinäkyvyydestä tähtensä valolle.Erityisesti punaisten kääpiötähtien säteilyolosuhteet ovat haastavia yhteyttävälle elämälle.#astrobiologia #elämä #eksoplaneetat thttps://tuomim.wordpress.com/2023/03/14/yhteyttavan-elaman-vyohyke/
(DIR) Post #ATdONA6BXbjeuvaxXc by mustapipa@scicomm.xyz
2023-03-15T06:38:49Z
0 likes, 1 repeats
Astronomers have characterized some of the features of an #exoplanet named HD 207496 b, located approximately 138 light years from Earth.This #planet has a radius 2.25 times that of Earth, with an orbit of 6.44 days, and a density of 3.27 grams per cubic centimeter, which is less than that of #Earth.It probably has a water or gas rich envelope, or some mixture of both.#astronomy #exoplanetshttps://phys.org/news/2023-03-transiting-mini-neptune-exoplanet-characterized-gaseous.htmlPaper by Barros et al. (2023):https://arxiv.org/abs/2303.03775
(DIR) Post #ATdPHGqBf56E2lro6y by mustapipa@scicomm.xyz
2023-03-15T06:19:23Z
0 likes, 1 repeats
A Wolf-Rayet #star is a rare prelude to the famous final act of a massive star: the #supernova.As one of its first observations in 2022, the #JWST captured the Wolf-Rayet star WR 124 in unprecedented detail.#astronomy #astrophotographyhttps://www.esa.int/Science_Exploration/Space_Science/Webb/Webb_captures_rarely_seen_prelude_to_a_supernova
(DIR) Post #ATdPYz5OPbfuBtQSFk by mustapipa@scicomm.xyz
2023-03-15T05:50:09Z
0 likes, 1 repeats
Yhteyttäminen on maanpäällisen elämän perustuotantoa, joka mahdollistaa pitkät ravintoketjut ja -verkostot.Mutta mahdollisuus siihen riippuu monesta tekijästä, kuten planeetan kaasukehän paksuudesta ja läpinäkyvyydestä tähtensä valolle.Erityisesti punaisten kääpiötähtien säteilyolosuhteet ovat haastavia yhteyttävälle elämälle.#astrobiologia #elämä #eksoplaneetat https://tuomim.wordpress.com/2023/03/14/yhteyttavan-elaman-vyohyke/
(DIR) Post #ATkXvDtsAnQYFMs8Ei by mustapipa@scicomm.xyz
2023-03-18T18:37:53Z
0 likes, 1 repeats
Extraterrestrial #life has the potential to exist on distant #exoplanets inside the terminator zone, which is a ring on #planets that have one side that always faces its #star and one side that is always dark.Such planets are common because they exist around stars that make up about 70 percent of the stars seen in the night sky—so-called M-dwarf stars, which are relatively dimmer than our sun.#astronomyhttps://phys.org/news/2023-03-terminator-zones-distant-planets-harbor.htmlPaper by Lobo et al. (2023): https://dx.doi.org/10.3847/1538-4357/aca970
(DIR) Post #AU3PKY6hq18vgfZFgW by mustapipa@scicomm.xyz
2023-03-27T21:23:31Z
0 likes, 1 repeats
Detection of the secondary #eclipse of TRAPPIST-1 b.This is the first detection of any form of light emitted by an #exoplanet as small and as cool as the rocky #planets in our own solar system.The result marks an important step in determining whether planets orbiting small active stars like TRAPPIST-1 can sustain atmospheres needed to support #life.#astronomy #exoplanetshttps://www.esa.int/Science_Exploration/Space_Science/Webb/Webb_measures_the_temperature_of_a_rocky_exoplanet
(DIR) Post #AUFRHrbAzaW6ItdUrw by mustapipa@scicomm.xyz
2023-03-29T07:38:18Z
0 likes, 1 repeats
Which #star created this bubble?It wasn't the bright star on the bubble's right.It was the star in the blue #nebula's center, a famously energetic Wolf-Rayet star.Wolf-Rayet stars in general have over 20 times the mass of our Sun and expel fast particle winds that can create iconic looking nebulas. In this case, the resulting star bubble spans over 60 light years and is about 70000 years old.#astronomy #astrophotographyhttps://apod.nasa.gov/apod/ap230329.html
(DIR) Post #AUJkCGELcpokhRIQQC by mustapipa@scicomm.xyz
2023-04-04T18:47:03Z
1 likes, 2 repeats
All biological amino acids on Earth appear exclusively in their left-handed form, but the reason for this is elusive.Recently, scientists uncovered new clues about the cosmic origin of this asymmetry.That the precursors to the biological amino acids may have determined the amino acid chirality during the early phase of galactic evolution.#astrobiology #aminoacidshttps://phys.org/news/2023-03-insights-cosmic-evolution-amino-acids.htmlPaper by Shoji et al. (2023):https://pubs.acs.org/doi/10.1021/acs.jpclett.2c03862
(DIR) Post #AUoI3s5sFMDAltFMEi by mustapipa@scicomm.xyz
2023-04-13T15:02:41Z
0 likes, 1 repeats
This zoomed-in image of #Uranus, captured by #JWST’s Near-Infrared Camera (NIRCam) Feb. 6, 2023, reveals stunning views of the #planet’s rings.The planet displays a blue hue in this representative-color image, made by combining data from two filters at 1.4 and 3.0 microns, which are shown here as blue and orange, respectively.#astronomy #astrophotographyhttps://www.nasa.gov/feature/goddard/2023/nasa-s-webb-scores-another-ringed-world-with-new-image-of-uranus?s=09
(DIR) Post #AUqdxMQPfE4S7g4ea8 by mustapipa@scicomm.xyz
2023-04-20T15:53:56Z
1 likes, 1 repeats
Supernova explosions pose yet another threat to #planets and their atmospheres.For some types of #supernova a torrent of X-rays could be unleashed that last for decades.This type of X-ray onslaught could significantly damage atmospheres of nearby planets, impacting #life as we know it.Earth is in a safe space in terms of potentially harmful supernova explosions, but may not have been in the past.#astronomy #astrobiologyhttps://chandra.si.edu/photo/2023/4snr/
(DIR) Post #AWL9DZKcJ2npbkWx2O by mustapipa@scicomm.xyz
2023-06-03T20:13:28Z
0 likes, 5 repeats
This vertically oriented logarithmic map spans nearly 20 orders of magnitude, taking us from planet Earth to the edge of the observable #Universe.#astronomy #cosmoshttps://www.pablocarlosbudassi.com/2021/02/atlas-of-universe-is-linear-version-of_15.html
(DIR) Post #AWNDIK6X8UcpxjNxho by mustapipa@scicomm.xyz
2023-06-05T06:25:48Z
0 likes, 1 repeats
What's happening at the center of the #Trifid Nebula?Three prominent dust lanes that give the Trifid its name all come together. Mountains of opaque #dust appear near the bottom, while other dark filaments of dust are visible threaded throughout the nebula.A single massive #star visible near the center causes much of the Trifid's glow. The Trifid, cataloged as M20, is only about 300 000 years old, making it among the youngest emission nebulas known.#astronomyhttps://apod.nasa.gov/apod/ap230605.html?s=09