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GoingFTL
  • Member for 4 years, 9 months
  • Last seen more than 2 years ago
22 votes
1 answer
3k views

What's the brightness of Alpha Centauri from Proxima Centauri?

3 votes
1 answer
900 views

How long does it take for an asteroid to get to Earth?

4 votes
1 answer
827 views

What did the night sky look like 100,000 years ago?

7 votes
1 answer
621 views

If the Mars polar caps were melted, how deep would the oceans be?

4 votes
3 answers
394 views

What would a terraformed Mars look like from Earth?

8 votes
2 answers
384 views

What if there was an asteroid belt with the mass of a planet?

4 votes
1 answer
318 views

How large could a second moon of Earth be?

1 vote
1 answer
233 views

Venusian polar surface temperatures

0 votes
1 answer
119 views

What resources do C-Type(Carbonaceous) Asteroids contain?

-1 votes
1 answer
110 views

Would Bussard Ramjets work in other places in or near the galaxy? [closed]