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11 votes
4 answers
3k views

Why are there no telescopes attached to or flying beside the ISS?

0 votes
1 answer
217 views

Why did the space shuttle always have missing tiles near the OMS pod, even before launch?

8 votes
1 answer
1k views

Is it feasible at all to build data centers in space?

5 votes
1 answer
279 views

Can astronauts in ISS and Tian Gong ever see each other's space stations?

6 votes
1 answer
2k views

Which Shuttle astronauts refused to fly with a Centaur after the Challenger disaster?

5 votes
1 answer
763 views

What do the terms postponement, slip and scrub mean in the context of the space shuttle program?

7 votes
2 answers
3k views

Multiple Gravity Assist from Moon to reach Mars

1 vote
0 answers
42 views

Falcon 9 Transporter Mission - Second Stage Attitude For Payload Deployment

2 votes
1 answer
222 views

In what 2010 interview did Donald Pettit discuss that the technology for going to the moon had been destroyed?

0 votes
0 answers
209 views
+100

How to avoid collision during flyby?

9 votes
2 answers
3k views

Have light gases like hydrogen or helium been explored for ion propulsion?

3 votes
0 answers
116 views

When could we determine mass and final trajectory of an incoming alien “Project Orion” spacecraft during its braking phase?

7 votes
2 answers
2k views

JGM-3 vs EGM2008 coefficients

10 votes
2 answers
2k views

Why are orbit raising maneuvers for Mangalyaan done in the early hours?

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