Venus has been considered a potential location for extraterrestrial life for decades. On the surface, of course, you'd be crushed & incinerated immediately. About 50km up, though, the temperature & pressure are fine: you could in principle survive with just heavy-duty scuba gear.
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Exploring the atmosphere of Venus seems like a very good idea, for a lot of reasons. This new announcement that Venus's atmosphere contains phosphine, a molecule that appears very difficult to produce on Venus through non-biological processes, makes Venus even more enticing.
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I, for one, am looking forward to the Venus cloud-habitat airships https://sacd.larc.nasa.gov/smab/havoc/ (thx
@jsnell for the reminder that this NASA concept exists)pic.twitter.com/ILMHMSp9Wa
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En réponse à @AstroKatie
I have questions, chief among them being “how/where do you assemble something like that before gravity sends you plummeting into the hellish maw of the planetary surface?”
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En réponse à @ChrisWarcraft
So, the cool thing is, the blimps could be filled with breathable air, because that would be buoyant at that layer of the atmosphere. So you assemble it in orbit I guess and then somehow lower it down? That part I'm not so sure of. But the lift, we got that.
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En réponse à @AstroKatie
Yeah the lift isn’t the issue, I’m trying to figure out how you inflate them in orbit (which probably isn’t possible?) Theoretically I guess you could build the habitats in orbit as planes that enter atmosphere and glide until they can assemble their own balloon.
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En réponse à @ChrisWarcraft
Yeah perhaps? I think we need to get
@ThePlanetaryGuy in here to help us scheme2 réponses 0 Retweet 5 j'aime -
En réponse à @AstroKatie @ChrisWarcraft
Yasss! Turns out, we kinda have the answer: in 1985, the USSR deployed two balloons at Venus, both of which operated for ~40 hours. They inflate in multiple stages during the descent, which starts off hypersonic but then slows to subsonic on 'chutes. (1/2)
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I'm not saying this isn't a crazy approach (although cf. Skycrane for
@MarsCuriosity), but it *did* work—twice, in the 1980s. https://en.wikipedia.org/wiki/Vega_program …1 réponse 1 Retweet 8 j'aime
Ooh, cool link, thanks!
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They were *such* ambitious missions, and it would be AMAZING to see something like them flown again...
0 réponse 1 Retweet 4 j'aimeMerci. Twitter en tiendra compte pour améliorer votre fil. SupprimerSupprimer
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Le chargement semble prendre du temps.
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