geoffc's user avatar
geoffc's user avatar
geoffc's user avatar
geoffc
  • Member for 10 years, 9 months
  • Last seen this week
71 votes
10 answers
55k views

Why is SpaceX considering Methane as fuel for their next engine, the Raptor?

32 votes
2 answers
18k views

Will the ISS need more docking ports?

29 votes
4 answers
2k views

What started the explosion on the crashed Jason-3 stage landing on the barge?

28 votes
1 answer
4k views

Why the soot pattern on the nosecone of Falcon Heavy side booster?

27 votes
1 answer
111k views

Did Neil Armstrong really say "Good Luck Mr. Gorsky" on the Moon?

27 votes
2 answers
3k views

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

24 votes
3 answers
3k views

When SpaceX claims to build 4 engines/week, which engines do they mean?

24 votes
2 answers
16k views

How are the SpaceX Falcon 9 Mod 3 and Mod 4 grid fins different?

22 votes
2 answers
21k views

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

22 votes
1 answer
1k views

Does the ISS team plan cargo flights when at half crew on purpose?

21 votes
1 answer
4k views

Why not use Sparklers on Delta-4 Heavy launches to burn off the hydrogen?

20 votes
1 answer
7k views

How does SpaceX ignite their engines?

20 votes
2 answers
3k views

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

19 votes
1 answer
8k views

What materials are the windows on the US Segment of the ISS made out of?

18 votes
1 answer
1k views

What is different from the R-7 that launched Sputnik, to the Soyuz launcher used for Soyuz/Progress launches?

18 votes
2 answers
3k views

Has any payload been as silly, as the Falcon Heavy's Tesla Roadster?

18 votes
2 answers
3k views

On the Falcon Heavy, why are the side boosters using Ti Grid fins, but not the center core?

16 votes
2 answers
3k views

Why is the descent module of the Soyuz in the middle of its stack?

16 votes
3 answers
2k views

Can Dragon, or Dragon V2 be used to boost the ISS orbit?

16 votes
4 answers
661 views

What lessons in Space Station design have come out of the ISS?

16 votes
5 answers
3k views

Can a solid first stage compete with a liquid fueled first stage?

15 votes
1 answer
1k views

Can a Boeing CST-100 be used to provide station reboost?

15 votes
1 answer
927 views

Highest stage counts in actual launchers?

14 votes
1 answer
3k views

What is involved in clearing air space for an orbital launch?

14 votes
5 answers
3k views

Other than then N-1 (30 engines) has there been a single stage of a rocket with more engines than a Falcon 9?

14 votes
1 answer
1k views

Are the power systems on the US and Russian segments of the ISS similar/compatible?

14 votes
1 answer
804 views

How many docking/berthing operations can a CBM port tolerate?

14 votes
2 answers
2k views

Could a Delta 4 Heavier be built?

14 votes
3 answers
2k views

What is the new horizontal test stand at SpaceX's McGregor, TX facility meant to test?

13 votes
2 answers
3k views

What is the problem with aborting a Space Shuttle launch?

1
2 3 4 5 6