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ghelgheli · 3 months

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Many people will be familiar with Neptune through a picture like this one (JPL). But over the past few days, a 2023 paper by Patrick Irwin et al. (doi) has been making the rounds because it reminds us that the deep saturation of these pictures does not correspond to Neptune's "true-colour" appearance. Their processing of the data from Voyager 2—the only probe to visit either of the "icy giants", Uranus and Neptune, and the second probe to cross the heliosheath—with the aim of preserving true-colour reveals a more subdued hue:

This puts Neptune closer to Uranus in the visual spectrum. Still, its surface remains bluer and less uniform; observe the "Great Dark Spot" above, a storm half as tall as the Earth and approximately as wide. This storm disappeared in the years after Voyager 2 passed the planet, but it was not the last.

Neptunian climatology is in fact something of an extreme science: the winds of its methane-dominated atmosphere regularly reach in excess of 2000km/h, the fastest found in the Solar System. Like Uranus, it's also thought possible that the high pressures near its (probably rocky) core decompose atmospheric methane and compress it into diamond crystals. In other words, at depths of 7000+ kilometers, it may "rain diamonds".

Neptune's biggest moon, Triton, is unique among large moons in having a retrograde orbit—that is, it moves opposite Neptune's own rotation. This suggests that it didn't form from the same region of the Sun's protoplanetary disk as Neptune, but is in fact a captured dwarf planet that may have originated further out in the Kuiper Belt. While our own Moon's orbit grows wider with time, tidal effects are decaying Triton's orbit, and in some three and a half billion years it may cross the Roche limit and be broken apart by Neptune's gravity. For an astronomically brief time, Neptune will have spectacular rings just as Saturn does now.

#space #text #neptune #space series #<guess i'm doing this now bc most of the space accounts here besides apod annoy me

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sleepyflower5 · 1 year

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last year's birthday present for the best guitarist, the sweetest pingu, out little prince, Kanghyun <333333

I miss him dearly, words can't explain how much I love and care for him ㅠㅠ <3

#onewe #kanghyun #onewe guitarist #kanghyun onewe #hyungu #kang hyungu #pingu #space series #onewe fanart #kanghyun fanart #my little prince <3 #kband #digital art #digital drawing #fanart #my art

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afabstract · 1 month

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The Signal Review - A Lengthy Blip

When an astronaut vanishes, her husband uncovers startling facts that put his and his little daughter's life in danger too. Read our quick review of "The Signal", a sci-fi thriller on Netflix.

⭐⭐⭐ Rating: 2.5 out of 5. One of the reasons I decided to stream “The Signal” (Original title: Das Signal) on Netflix was its limited runtime – only four episode. But once you begin watching this sci-fi show, even those 4 episodes begin to feel never-ending. Directed by Sebastian Hilger and Philipp Leinemann, “The Signal” follows the mysterious vanishing of astronaut Paula (Peri Baumeister).…

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#Das Signal #Entertainment #german sci fi series #Peri Baumeister #Reviews #sci fi series #sci fi thriller #space series #the signal 2024 series review #The Signal Review #the signal series review

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prinnay · 19 days

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Space Lettermans

#art series #loved making these #artists on tumblr #space letterman

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spookygibbontales · 8 months

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Space Gleam Fiction, Creator's Commentary

By Peter Stringer

#space series #directors commentary #graphic novel #simple animation #art #comic art #motion comic #phone art #made with mobile #space travel #aliens #cyber beings #cosmic spectres #hyper ghouls #cyber selfs

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stra-tek · 21 days

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Star Trek's crazy ass 28 day total runtime leaving everyone else in the shade

#star trek #star trek discovery #star trek aos #star trek the original series #star trek picard #star trek kelvin timeline #the next generation #tng #ds9 #deep space nine #voyager #lower decks #prodigy

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70sscifiart · 3 months

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For 2024, I’m doing Space Crowd Saturday! Every Saturday, I’ll post a retro sci-fi illustration featuring a bunch of weirdos at a party, pub, wretched hive, you get the picture.

First up is a classic scene by Jack Gaughan, for 'Isaac Asimov's Science Fiction,' March-April 1978

#art #Space Crowd Saturday #Saturday series #jack gaughan

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kingof-the-crossroads · 8 months

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dadbodbensisko-moved · 5 months

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foamloam · 3 months

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Sea, Swallow Me - Cocteau Twins

#Star Trek #star trek the voyage home #Star Trek 4 #spock #star trek tos #spock star trek #star trek the original series #tos spock #my inspiration for this was Spock’s memory loss he got when he died and got revived #I love Star Trek 4 #I am putting this in my ap art portfolio lol I hope it’s good #I had a lot of fun drawing the ships in this #I love space ship :-)#star trek fan art #loamsart

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ghelgheli · 3 months

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A month ago, NASA released a new image of the supernova remnant Cassiopeia A taken by Webb's near-infrared camera (left). This reveals a more subdued object than an earlier mid-infrared image (right), but both are available in very high resolution revealing structural details.

Cassiopeia A is the youngest supernova remnant in our galaxy, making it an object of intensive study; its progenitor star is estimated to have exploded 340 or so years ago. Supernovae are the strongest known explosions in the universe, and any localized in the Milky Way are likely to be visible to the naked eye, even in daylight. But there is only tenuous evidence of Cassiopeia A entering the historical record at birth.

The remnant has expanded to a size of around 20 light years in the mere three centuries since, reflecting the speeds achieved by matter ejected in a supernova. Even the smallest details visible in the near-infrared image span a hundred astronomical units—twice the distance between the Sun and Pluto when the two are furthest apart. The remnant continues to expand at up to five percent the speed of light.

Long-term study of supernova remnants like this one are often interested in the profile of heavy elements they disperse. Note that astronomically, anything heavier than helium is a "metal", a distinction made to signify the fact that these elements can only be produced in later stages of stellar nucleosynthesis. The truism that "we're made of stardust" often refers to this process and the subsequence dispersal effected by a supernova.

#space #space series #< doing this to cope with my mistake of switching out of stem

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makowcy · 6 months

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gif from that hit 90s space mining anime that is real and not made by me

au by @kiszoneszczury

#tangotek #space mining au #on a grind of watching the new life series from too many povs i am so so normal #see you in many hours #trafficblr #pros of working on a small canvas is that bg is very quick and nice to draw cons of working on a small canvas is that characters are not #also i used after effects for the first time why is the clipping mask like that #my art #animation

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offline-nobody · 2 months

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if i had a penny for everytime star trek wrote an incredibly autistic coded character, who happened to also be gay for the most bisexual character imaginable, id have 5 pennies, which isn’t a lot but it’s weird that its happened 5 times, right?