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geoffc
  • Member for 10 years, 10 months
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32 votes

How do the sizes of the various proposed manned capsules differ?

32 votes

Why are there no spacecraft rotating for artificial gravity?

32 votes
Accepted

Why is NASA building its own rocket for the moon mission when it could use SpaceX's?

32 votes
Accepted

What makes 21st century fairings so valuable that they'd potentially be recovered and re-used?

31 votes
Accepted

Why were jet engines not used in place of the solid fuel in the STS SRBs?

30 votes
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Why is Falcon 9's shape so tall and skinny?

30 votes

What happens to defunct lunar and Mars rovers? What technological barriers prevent humanity from creating a perpetual rover?

30 votes
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Can a rocket be launched while it rains?

30 votes
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Apollo command module space walk?

29 votes

For the Starship SN8 flight, did they lose engines in flight?

28 votes
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Isn't Starship way too big?

28 votes
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More efficient SpaceX landings?

28 votes
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Why are three cosmonauts required to move a Soyuz?

28 votes

Why does SpaceX have a launch window for a pad abort test?

28 votes

Is the SLS irrelevant if the Falcon Heavy launch is successful this year?

28 votes
Accepted

Has there been any collision between two active spacecrafts?

26 votes
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Why is there a need for getting rid of ISS trash using the empty ATV and similar vehicles

25 votes

Why is the Falcon Heavy first launch being given such a risk of failure?

25 votes

What caused the N1 to become a failure?

25 votes
Accepted

How far would the STS get without the SRBs

24 votes

What is the purpose of the jets of water often under rocket engines during launch?

24 votes
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How will SpaceX achieve landing of the Falcon 9 first stage?

24 votes
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Why is the Angara rocket called eco-friendly?

24 votes

Why create a production line for the SpaceX Starship?

23 votes

Will SpaceX delay launches, if the landing site weather is unacceptable?

23 votes
Accepted

Will SpaceX attach its fairings to a booster to recover them?

23 votes

What happens to the Falcon 9 second stage after payload separation?

23 votes
Accepted

Air in International Space Station

23 votes
Accepted

Why did the Russians never land on the Moon?

23 votes

What made NASA shut down the Shuttle program?

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