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Woody
  • Member for 7 months
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  • Kerbal
22 votes
5 answers
6k views

Why are eclipses of the James Webb by the Earth or Moon not permitted during the mission?

19 votes
3 answers
3k views

Why are unused launch abort rockets jettisoned rather than used to augment thrust?

16 votes
1 answer
1k views

How does SpaceX plan to supply or recycle respiratory gasses?

14 votes
2 answers
1k views

Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Was Dick Tracy wrong?

12 votes
1 answer
458 views

Why do EVA suits have legs?

11 votes
1 answer
1k views

Does NASA police urine production by astronauts?

11 votes
0 answers
204 views

Has Buzz Aldrin’s Line-of-Sight rendezvous method ever been used?

10 votes
2 answers
277 views

Could Apollo's Sextant navigation use similar geometry as Marine Navigation?

10 votes
2 answers
748 views

Is JWST Halo orbit prograde or retrograde and why?

9 votes
2 answers
1k views

During orbital rendezvous, at what distance and approach velocity does the transition from orbital mechanics to “boating around” occur?

8 votes
2 answers
272 views

Question: By design, JWST cannot observe in the anti-sun direction. Is this due to Gegenschein backscatter?

6 votes
1 answer
267 views

JWST Halo Orbits for Dummies: can halo orbits be usefully approximated by Simple Harmonic Motion?

6 votes
1 answer
266 views

Question: Does JWST have hardware that could be used as a docking fixture by repair spacecraft?

6 votes
1 answer
250 views

Why does the Buzz Aldrin Mars Cycler not play a larger role in planning for Mars exploration?

6 votes
1 answer
224 views

When the ISS is de-orbited, what is the likely mass of the largest impact fragment?

6 votes
1 answer
205 views

What generates static charge on the ISS?

6 votes
0 answers
162 views

What to do until the hearse arrives: is there a designated morgue on ISS?

6 votes
1 answer
166 views

What is the time sequence for SRB burn-out and separation?

6 votes
1 answer
285 views

How to attain an equatorial orbital inclination from a non-equatorial launch site?

5 votes
1 answer
129 views

How are JWST tanks baffled to dampen slosh?

5 votes
0 answers
107 views

New spin on laundry day: How will ISS cope with washing machine vibration and angular momentum?

4 votes
2 answers
824 views

Why does JWST have such a big Blind Spot?

4 votes
1 answer
241 views

Starship reentry velocity on return from Mars: What are the options

4 votes
2 answers
608 views

Starship: Methane and Oxygen can't both be liquid, except in a narrow temperature range. Is this a problem for interplanetary voyages?

4 votes
0 answers
146 views

Deorbit of ISS is a unique event. Are there plans for scientific observation?

4 votes
0 answers
64 views

Are L1 and L2 orbital periods always half the orbital period of the massive bodies?

4 votes
0 answers
100 views

Can JWST come in for a pit stop? Is the fuel supply on JWST adequate for a transfer to an Earth Moon libration point to allow repairs?

3 votes
1 answer
109 views

What transportation energy “currency” would be most suitable for mobile machinery on the Martian surface?

3 votes
2 answers
216 views

Can ISS trash be used as reaction mass for orbital maintenance

3 votes
1 answer
93 views

Why does the moon’s transit appear so inclined in this STEREO-B video?