Skip to main content
Mark Foskey's user avatar
Mark Foskey's user avatar
Mark Foskey's user avatar
Mark Foskey
  • Member for 9 years, 1 month
  • Last seen this week
30 votes
4 answers
4k views

Could the lunar module have moved to a different spot?

28 votes
2 answers
6k views

Why is tantalum being used for the Hayabusa bullets?

13 votes
2 answers
2k views

What caused the jitter in the DART video as it approached Dimorphos?

11 votes
1 answer
248 views

When regenerative cooling is used, how is the nonuniform radius of the combustion chamber handled?

9 votes
0 answers
104 views

How does the JWST sunshade cover release work?

7 votes
2 answers
564 views

Is the surface environment of Venus corrosive?

7 votes
1 answer
185 views

Why does the Perseverance landing site have three close bright dots in a line, with a perpendicular dark streak?

5 votes
0 answers
207 views

Did the Perseverance sky crane kick up more dust than expected?

5 votes
2 answers
382 views

How does the hopping mechanism of the Minerva II rovers work?

5 votes
2 answers
1k views

Are the mirrors on O'Neill cylinders really feasible?

5 votes
1 answer
163 views

Given that JunoCam is mainly for outreach, how bad is it as a scientific instrument?

4 votes
1 answer
268 views

Shuttle-era mission profile for a desperation moon mission