Questions tagged [venus]

This tag should be used for questions about the planet Venus.

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19
votes
2answers
4k views

A character steps outside in the upper atmosphere of Venus- how sunburned is he?

For complicated reasons our hero's blimp in the Venus atmosphere at an altitude of 50 km gets a tear in it and sunlight floods inside (there is no gondola, the blimp is a semi-ellipsoid of breathable ...
13
votes
4answers
2k views

Could you live in underground lava tubes on Venus?

In approximately 50 years, NASA and many other international space agencies collaborate to create a cloud top base on Venus. The astro-geographers on the station (aka the loser's club) want to go to ...
12
votes
5answers
405 views

Fastest way to oxygenate Venus

Scientists recently discovered a propellantless drive capable of completely negating gravity with low energy inputs! Huzzah! Sadly the Earth is going to be destroyed soon by a rogue handwave. Looking ...
11
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4answers
1k views

How Many Earth-Like Worlds Could Be Made Using Only Material From The Solar System?

Assuming that some future civilization of hyper-advanced humans, or aliens for that matter, had the technology to reshape the solar system so that there were several habitable planets the rough size ...
7
votes
3answers
476 views

Is it plausible that Venus was once swampy and reasonably habitable to Earth-like beings?

I plan to write a novel set on old Venus. What I mean by this is that it is set on a Venus where it was still thought to be a swampy planet. I know that is an unlikely past, but I have read oceans may ...
6
votes
1answer
101 views

Time to cool a de-atmosphered Venus?

The surface of Venus is about 492ºC, under a sky containing 92 atmospheres of mostly carbon dioxide, and it probably has been for many millions of years. This means the entirety of the planet's 50 km ...
5
votes
1answer
269 views

Temperature of a habitable Venus?

I'm looking at designing a neo-Old Solar System version of Venus which is habitable. The following conditions hold: The cloud cover still exists, hiding Venusian civilization from the outside world ...
4
votes
2answers
90 views

How does composition change if you extend an Earthlike atmosphere 50km below sea level?

I'm working to design the atmosphere of a fictional planet inspired by Venus (let's call it Cael). Cael's atmosphere at an altitude of 50 km is essentially identical to Earth's atmosphere at sea ...
3
votes
2answers
230 views

Terraformed Venus and Mars

A Traveler from a very advanced civilization has visited the Solar system. He found the humans likable, and decided to leave them a boon. For some reason, he couldn't do anything directly to the Earth ...
3
votes
2answers
395 views

Surviving the atmosphere of Venus

From what I've seen, a floating habitat about 50 km above the surface of Venus is feasible--the atmosphere is dense enough that breathable air is a lifting gas, and that would be about the height for ...
2
votes
3answers
248 views

Alien Life on a Venus-like World?

Trying to consider how a walking, socially-active sapient plant would evolve and the world it would live in. More specifically, how would something which is essentially a walking tree living in a ...
2
votes
2answers
893 views

How long could an ecosystem survive without sunlight?

I am designing a terraformed Venus, where the planet has been given an Earth-like atmosphere but keeps it's original rotation rate. Colonists are importing Earth life to Venus to add a biosphere to ...
2
votes
1answer
155 views

Using a dense material to strip away some of Venus atmosphere

I want to partially terraform Venus, enough to make it feasible to mine minerals etc,. there. To do this I need to do a few things but for this question I'm focusing on stripping away at least some of ...
0
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1answer
113 views

How has Venus held onto its atmosphere [closed]

Without its magnetosphere, how has Venus held onto its atmosphere, when Mars lost its atmosphere and water when its magnetic field was turned off?
0
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5answers
164 views

Is it possible to move planets to get them nearer to Earth? [closed]

Could we move rocky planets such as Mercury, Venus, and Mars to be closer to Earth's orbit? I know it sounds like a silly question and it's impossible right now, but if there is a small possibility, ...
0
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3answers
149 views

What if Genetically Adapted Humans Colonizing the Atmosphere of Venus Ended Up Competing with a Previously Unknown Life?

I've created the outline to a story involving human beings colonizing Venus, or rather the atmosphere at an altitude of approximately 51 km. Through advanced medical techniques, the first colonists ...
0
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0answers
19 views

Titan and Europa [closed]

Why does Titan have an atmosphere denser than that of the Earth? And why does Europa not have even a fraction of Titans atmosphere given that it is not that small as compared to Titan?
-2
votes
1answer
152 views

How much material would be required to build a giant sun shade to cool down Venus? [closed]

One way to terraform Venus would be to create a massive sun shade enveloping the planet. How much actual material would be required for this? And where would you get it from?
-3
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2answers
122 views

Multi planet and moon orbit exchanges [closed]

If we pushed Mercury out of orbit for a close fly by of Venus in order to put Mercury in roughly Venus's orbit while flinging Venus to swing by Mars. Which will pull Mars's orbit a little closer to ...