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1 answer
36 views

Are there multiple types of UTC time?

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Erin Anne
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3 votes
3 answers
88 views

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

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Ludo
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3 votes
1 answer
126 views

Has intra-cranial pressure been measured on ISS astronauts for SANS research?

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Digger
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8 votes
1 answer
121 views

Using today's technology, is interstellar navigation possible?

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3 votes
1 answer
505 views

What makes CAPSTONE-1's eight hydrazine thrusters so "super small, high-performance"? How do they work without any tank pressurization?

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2 votes
0 answers
141 views
+200

How will NASA's software for autonomous navigation in cis-lunar space be tested; what information is processed, what outputs evaluated?

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1 vote
0 answers
64 views

Objects move clockwise instead of counter-clockwise

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Dzejkop
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14 votes
4 answers
2k views

Do any systems in space use Artificial Intelligence yet?

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BlaziusRex
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-3 votes
0 answers
72 views

Can liquid mercury be used as a reusable rocket fuel? [closed]

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George Doolittle
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4 votes
1 answer
149 views

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

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Steve Pemberton
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8 votes
6 answers
3k views

Methane internal combustion engines for rovers on Mars and Moon. Feasibility?

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3 votes
1 answer
321 views

Creating an animation short and need orientation info

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Hobbes
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15 votes
3 answers
5k views

What are the biggest challenges for high altitude rail-gun launch systems?

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20 votes
1 answer
2k views

Is a railgun up Olympus Mons possible?

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phil1008
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6 votes
2 answers
404 views

Is the acoustic horn at Stennis Space Center still there? Is it used?

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jared
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3 votes
2 answers
110 views

sun pointing coordinate system design

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Erin Anne
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19 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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3 votes
1 answer
130 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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9 votes
1 answer
1k views

Why was Redstone Arsenal specifically chosen for post-war rocket development?

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Fred
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14 votes
1 answer
2k views

How likely is it that the Voyager spacecrafts haven't yet been damaged by micrometeoroids?

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Russell Borogove
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37 votes
4 answers
8k views

Why did the Soviet Union decide to use 30 small engines instead of a few large ones on the N1?

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Ian Kemp
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3 votes
1 answer
2k views

Space craft and interstellar objects

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Hobbes
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3 votes
0 answers
115 views

Alternative small mass payload transportation from the moon to L5 besides rail gun and mass driver?

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4 votes
1 answer
234 views

what kind of valves are used in payload fairing for venting?

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Woody
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2 votes
1 answer
355 views

How much does it cost to build terrestrial ground station capable of controlling satellites orbiting the moon?

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4 votes
1 answer
485 views

Methane or LOX tank at Boca Chica

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3 votes
0 answers
173 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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5 votes
2 answers
962 views

Object slowest at periapsis - despite correct position calculation

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Michael Hardy
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10 votes
3 answers
19k views

Transform ECI to ECEF

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Ludo
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2 votes
0 answers
39 views

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

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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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23 votes
6 answers
5k views

How can a rocket's self-destruct make for a safer situation than being out-of-control?

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Russell Borogove
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22 votes
6 answers
4k views

What makes aluminum aerospace grade?

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0 votes
1 answer
83 views

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

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Fred
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0 answers
34 views

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

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Khan
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4 votes
2 answers
294 views

What were the sizes of the roll-on cuffs called?

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Franck Dernoncourt
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5 votes
2 answers
232 views

Is a brachistochrone the best ascent profile?

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C. Towne Springer
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3 votes
0 answers
187 views
+100

Are there examples of spaceflight equipment being redesigned to remove right hand bias? (To make it less difficult to use left-handed)

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uhoh
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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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2 votes
2 answers
122 views

What is ascent venting?

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Woody
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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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1 answer
272 views

How do the mechanical properties of 301 stainless steel, carbon fibre composites, and Aluminium-Lithium alloys compare?

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Woody
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4 votes
1 answer
324 views

How to read stuffin.space data?

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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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1 vote
0 answers
54 views

Visualization tool for Space Rendezvous and docking [closed]

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KUMUD YADAV
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-3 votes
1 answer
102 views

Artifical Gravity central core [duplicate]

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Erin Anne
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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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3 votes
2 answers
266 views

Has Demonstrator-1 2021-006BX demonstrated a hydrogen-oxygen combustion engine fueled by electrolysis yet?

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Barry Jenakuns
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