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Active 1 Bountied Hot Week Month
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0 answers
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How beaten up would Voyager 1 be in 40,000 years?

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uhoh
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2 votes
1 answer
39 views

Creating an animation short and need orientation info

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Hobbes
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18 votes
7 answers
9k views

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

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No Nonsense
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0 votes
1 answer
32 views

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

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Steve Pemberton
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3 votes
2 answers
103 views

sun pointing coordinate system design

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Erin Anne
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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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3 votes
1 answer
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Space craft and interstellar objects

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Hobbes
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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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4 votes
1 answer
1k views

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

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Russell Borogove
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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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2 votes
0 answers
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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23 votes
3 answers
4k views

Was Starship’s “launch window” administrative, rather than due to orbital mechanics?

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Jörg W Mittag
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18 votes
1 answer
5k views

Person falling from space

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Alejandro Rojas
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10 votes
2 answers
2k views

Wouldn’t Super Heavy flip following stage seperation, even without help from its 3 lit engines?

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Chris Ison
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0 votes
1 answer
80 views

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

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Fred
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5 votes
2 answers
231 views

Is a brachistochrone the best ascent profile?

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C. Towne Springer
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2 votes
2 answers
118 views

What is ascent venting?

Woody's user avatar
Woody
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3 votes
2 answers
101 views

Typical external temperature profile for a LEO satellite

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John Doty
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6 votes
1 answer
2k views

Did Starship Ship 25 burn up on re-entry?

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0 votes
0 answers
33 views

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

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Khan
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-3 votes
1 answer
100 views

Artifical Gravity central core [duplicate]

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Erin Anne
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9 votes
2 answers
3k views

Term for deformation due to gravity

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Organic Marble
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11 votes
5 answers
1k views

In circle orbit, give a delta V to a satellite, how to find final orbit altitude?

HopDavid's user avatar
HopDavid
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2 votes
3 answers
788 views

(How) would the water deluge system impact Starship superheavy captures?

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Jörg W Mittag
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6 votes
1 answer
769 views

What are these "fountains" during the deluge for the Super Heavy launch?

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Steve Pemberton
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20 votes
3 answers
5k views

Why do the boot prints on the moon appear bright in some photographs or film?

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terdon
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2 votes
3 answers
185 views

Disposing of Obsolete Satellites by Propelling to the Sun

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Agnius Vasiliauskas
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4 votes
1 answer
258 views

Why Spacex Starship is not a modular rocket?

SF.'s user avatar
SF.
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1 vote
0 answers
63 views

What kind of propulsion did/does the Raytheon EKV vehicle use?

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blobbymcblobby
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32 votes
1 answer
4k views

Apollo 13's plutonium RTG re-entry into the Tonga Trench: Good shootin' or good luck?

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Harper - Reinstate Monica
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-1 votes
0 answers
73 views

How does the Falcon 9 first stage navigate to and precisely land on the drone barge? [duplicate]

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John McCarthy
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10 votes
3 answers
3k views

What is the largest object/mass that can survive entry into the earth's atmosphere from space without heating to 40 degrees C, or above?

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Vorbis
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1 vote
0 answers
53 views

Visualization tool for Space Rendezvous and docking [closed]

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KUMUD YADAV
  • 11
2 votes
1 answer
92 views

Is vacuum created between the inner engines under Earth's atmosphere that could affect the booster in the early moments of the ascent?

A McKelvy's user avatar
A McKelvy
  • 2,473
1 vote
1 answer
165 views

During Starship's recent flight, the stack appeared to be venting gas during the staging sequence. What was it?

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Jörg W Mittag
  • 18k
4 votes
2 answers
228 views

Does swimming experience help to adapt to weightlessness?

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Oscar Lanzi
  • 8,445
4 votes
2 answers
449 views

Are rockets deliberately throttled back towards the end of the burn to spare crew and airframe g-forces?

Woody's user avatar
Woody
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-2 votes
0 answers
48 views

What text/video would succinctly describe the ways in which Einstein's equations must be modified because of new information from quantum mechanics? [closed]

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Ruminator
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-1 votes
0 answers
52 views

From the example of the ISS at 400 km please explain in more detail how to calculate AB or the width of the earth [closed]

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Neil Malone
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20 votes
1 answer
3k views

Why are the Martian poles not covered by dust?

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Darth Pseudonym
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14 votes
2 answers
1k views

Does the atmospheric pressure of Mars fluctuate because of the seasonal evaporation of the polar ice caps?

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Alan Birtles
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2 votes
0 answers
230 views

Why did Starship perform an abrupt course correction seconds before stage separation?

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jkztd
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2 votes
2 answers
1k views

Is there an anomalous variation of distance between Earth-Moon during a lunar eclipse?

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jpa
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12 votes
3 answers
5k views

Why does the Curiosity rover camera image resolution have "milliradians" as a unit?

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Pere
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1 vote
0 answers
109 views

Scattering of exhaust gases during Starship IFT-2 hot staging

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P Marecki
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10 votes
1 answer
2k views

How is hot staging of Starship expected to provide such a large (10%) increase in total mass to LEO?

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uhoh
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0 votes
0 answers
57 views

Impact of Satellite Movement on Signal Processing Between Tx and Rx:

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Aid22
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0 answers
32 views

Eclipse/sunlight detection for LEO satellites

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AJN
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