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0votes

0answers

13views

Black Holes as Topological Defects in the Universal Expansion

1

asked 4 hours ago

0votes

0answers

24views

Request for Guidance on CubeSat (3U) Prototype Assembly and Integration [closed]

17

asked 17 hours ago

2votes

1answer

90views

Lambert's problem without collisions

6,620

answered yesterday

1vote

1answer

193views

Has any fission rocket engine using thorium as a fuel been considered?

SE - stop firing the good guys

44.1k

answered 2 days ago

10votes

1answer

1kviews

Is the large size of the antennae on Orion satellites primarily for signal strength or for angular resolution?

153k

modified Apr 19 at 7:36

3votes

0answers

49views

rebound + SPICE (scipy) simulation produces highly inclined lunar orbit

153k

modified Apr 23 at 16:54

16votes

1answer

3kviews

Is the centrifuge still part of astronaut training?

194k

modified Apr 15 at 23:21

10votes

2answers

4kviews

What prevents solar sails from being used?

153k

answered Apr 14 at 1:52

20votes

1answer

5kviews

Why do US astronauts sometimes still launch on Russian Soyuz rockets when they have their own transportation to the ISS now via SpaceX?

Peter Mortensen

354

modified Apr 11 at 15:24

6votes

2answers

2kviews

Skywriting and advertising in space?

153k

modified Apr 15 at 15:28

-1votes

1answer

111views

How large would a spacestead (rotating habitat) have to be for there to be an earth-like horizon? [closed]

153k

answered Apr 21 at 0:18

2votes

0answers

82views

Has viscous dampening been used to control oscillations from solar pressure vanes?

33k

asked Apr 20 at 21:41

2votes

1answer

166views

Did Blue Origin NS-31 achieve any scientific goals?

22k

answered Apr 19 at 10:20

5votes

2answers

983views

How much decibels of noise would a person hear when ingenuity is at full speed in martian atmosphere?

33k

answered Apr 14 at 20:02

3votes

3answers

228views

How to estimate the orbital height from the time it takes a satellite to cross the sky?

153k

modified Apr 17 at 6:02

9votes

3answers

2kviews

Should secondary flight computers run a RTOS, or use middleware?

6,620

answered Apr 7 at 21:12

3votes

1answer

321views

Using rocket engines as vacuum pumps for high altitude hot fire testing

3,214

modified Apr 15 at 16:53

17votes

3answers

4kviews

Why disable Gaia?

2,715

modified Apr 3 at 18:50

1vote

0answers

93views

Can a specific impulse and exhaust velocity be defined (or at least estimated) for pulsed explosive rocket engines?

153k

modified Apr 18 at 12:25

10votes

1answer

4kviews

Are astronauts permitted to listen to music during their daily exercise?

1

modified Apr 3 at 17:52

2votes

1answer

303views

Which operating space telescopes has the Trump administration proposed to "switch off"?

153k

modified Apr 12 at 9:29

1vote

0answers

21views

GMAT - Simulating realtime ground track

153k

modified Apr 18 at 12:22

0votes

0answers

59views

How would "MicroGEO" satellite orbits be safely managed if they proliferate?

153k

modified Apr 16 at 0:00

7votes

2answers

1kviews

Relation between mass and required fuel

6,933

modified Apr 3 at 7:10

3votes

1answer

139views

Did the Falcon 9 also use the G-FOLD algorithm for guidance during rocket into orbit, or did they use other algorithm, such as PEG?

6,620

answered Apr 10 at 22:36

2votes

0answers

54views

Would a hybrid engine with fuel-side full-flow staged combustion and a gas generator for the oxidizer pump be feasible in a hydrolox engine?

121

asked Apr 14 at 12:58

0votes

0answers

29views

What is the largest number of individual spacecraft bound for GEO that have been launched together?

153k

asked Apr 15 at 23:59

2votes

1answer

103views

Is there a formula for the maximum GPS Doppler that can be observed on Earth?

21

answered Apr 24 at 22:29

2votes

2answers

201views

Is hydraulic servo the only option for gimbaled thrust on an engine using the RP-1, or does electric actuators have some unique advantages?

153k

modified Apr 9 at 1:49

9votes

2answers

500views

Has an image showing the Fram2 launch groundtrack been published? If so, where?

13k

answered Apr 2 at 0:04

5votes

3answers

222views

${}^{3}$He based fusion propulsion, linear magnetic confinement with MeV protons out one end; new or old idea, and what are major challenges/concerns?

33k

modified Apr 9 at 15:10

0votes

0answers

75views

I read that the Artemis missions are planning on having the astronauts be able to survive in their IVA suits for at least 6 days [duplicate]

2,151

asked Apr 9 at 15:12

6votes

0answers

485views

What do astronauts get to take in their carry-on?

13.4k

modified Apr 4 at 8:57

1vote

0answers

87views

Creating a coverage analysis map in GMAT

78k

modified Apr 8 at 12:28

5votes

1answer

185views

Astronauts on the Moon or Mars, and the potential for lunar silica dust in lungs; health issues or concerns, and mitigation plans?

153k

modified Mar 30 at 3:30

4votes

0answers

189views

When astronauts take something cool to the space station, do they leave it there for other astronauts?

Miss Understands

1

asked Apr 4 at 13:22

-3votes

1answer

147views

Building a space elevator from space down [closed]

785

modified Apr 2 at 4:52

-3votes

1answer

126views

Will the Europa clipper's solar panels affect the magnetometer readings? [closed]

Darth Pseudonym

8,714

modified Mar 29 at 23:15

7votes

4answers

333views

For asteroid redirection to avoid Earth collision, is the direction of the thrust relevant? Will any push work if it's big enough?

10.6k

answered Mar 29 at 13:35

7votes

2answers

447views

What has really happened with New Glenn booster on 16 January 2025?

8,228

modified Apr 1 at 1:59

31votes

2answers

7kviews

Is there someone continually monitoring the Voyager spacecraft?

1

modified Apr 8 at 16:02

6votes

1answer

118views

How to calculate COEs from State Vectors in Left Handed XYZ Coordinate System/C++

1

modified Apr 24 at 20:09

6votes

1answer

486views

How do Inertial Navigation Systems compensate for their inability to measure gravitational acceleration?

1

modified Apr 23 at 20:17

2votes

1answer

255views

Showing from where satellites can "be seen" in GMAT

194k

modified Apr 7 at 16:36

7votes

1answer

189views

Looking for Apollo Flight Control Hardware Blueprints (such as RHC, THC and COAS)

194k

modified Apr 8 at 2:04

1vote

7answers

3kviews

Are people actually serious about mining the Moon?

255

modified Apr 22 at 10:00

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