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What kept the Soviets from going to the Moon (before the US)?

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5 votes
2 answers
952 views

Object slowest at periapsis - despite correct position calculation

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Michael Hardy
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3 votes
1 answer
2k views

Space craft and interstellar objects

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Is this 62 mile interception altitude reasonable for this stated missile trajectory?

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Russell Borogove
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2 votes
1 answer
119 views

Does a country need to announce the parameters of its newly launched satellite to the world?

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cubetronic
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2 answers
103 views

sun pointing coordinate system design

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3 votes
0 answers
169 views

Why did Starship start tilting to one side as soon as it lifted off during IFT-2?

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Anthony Stevens
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Slowing down 16 Psyche using an enormous solar sail to reach the inner planets

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Fred
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39 views

Creating an animation short and need orientation info

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Hobbes
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32 views

Is it easier to detect a satellite than an aircraft with a land-based radar?

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How beaten up would Voyager 1 be in 40,000 years?

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uhoh
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37 views

NASA’s NIAC has awarded phase III funding for Diffractive Solar Sails. Demonstration mission in the works?

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Woody
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Is mandatory to coat SLV fairing with anti static paint, please? [closed]

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Khan
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