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5 votes
3 answers
446 views

Has anyone ever flown to space in a vehicle they helped build?

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Russell McMahon
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24 votes
3 answers
25k views

Voyager 3: what would have been its mission, and why was it canceled?

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Alex Measday
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5 votes
1 answer
1k views

Confused about SGP4 implementation published by celestrack

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Ryan C
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6 votes
2 answers
1k views

Astrodynamics for gas giant moons - SOI flawed

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Paulo Gil
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13 votes
3 answers
2k views

How hot or cold would the caves on Venus be?

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Darth Pseudonym
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4 votes
2 answers
3k views

How would people measure time on Venus?

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Mark Foskey
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2 votes
0 answers
94 views

Burnup rate of debris during re-entry

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Fred
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-1 votes
2 answers
249 views

Is an orbit possible such that its orbital linear velocity is equal to Earth's rotational linear velocity at the equator?

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The Rocket fan
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23 votes
2 answers
15k views

What is the escape-velocity for our galaxy?

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Woody
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3 votes
2 answers
585 views

Criterion for capture or escape orbit

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James K
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30 votes
4 answers
8k views

Why exactly do robots freeze? How could we engineer around it?

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Rexcirus
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5 votes
2 answers
1k views

What novel tank designs and ideas are out there to prevent fuel in a rocket tank from "sloshing around"?

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Niles
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7 votes
1 answer
664 views

What is that extra exhaust on the RS-68

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A McKelvy
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4 votes
0 answers
55 views

What capabilities do Europa Clipper/Hera have to analyze the ion tail of 3I/ATLAS?

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controlgroup
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