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1 vote
1 answer
19 views

Is it possible to determine the classical orbital elements for an Elliptic Repeating SSO?

1 vote
0 answers
36 views

Oddities near Kennedy Parkway

0 votes
0 answers
94 views

Ion propulsion system

3 votes
2 answers
130 views

Could there be caves on Mars in the areas inside Jezero crater and the watershed west and north of it where the Mg carbonates are detected?

1 vote
0 answers
40 views

What is the largest number of rocket engines ever successfully used on a single craft as of 2022?

1 vote
2 answers
423 views

Why doesn't NASA fly its rockets on suborbital trajectories to the Moon?

7 votes
1 answer
439 views

What's the typical temperature of a reactor core in a nuclear thermal rocket?

2 votes
0 answers
53 views

How long does NASA take to post process JWST images?

7 votes
4 answers
14k views

How fast do Starlink satellites (SpaceX new satellites) rotate around the earth?

4 votes
1 answer
160 views

Would it be practical to fly a probe to Mars using gravitational assistance from Venus?

5 votes
2 answers
2k views

Why does the Falcon 9 first stage continue to decelerate after its reentry engine burnout?

5 votes
1 answer
2k views

How long can the SpaceX Starlink satellites survive before they deorbit?

5 votes
2 answers
493 views

Is there any orbital launcher capable of removing the second stage from orbit after inserting the payload satellite into LEO?

160 votes
3 answers
24k views

How did the Apollo computers evaluate transcendental functions like sine, arctangent, log?

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