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Active 1 Bountied Hot Week Month

38 votes

5 answers

5k views

How did theorists determine that the atmosphere attenuates enough to support unpowered orbits?

David Hammen

71.4k

answered Mar 9 at 16:07

12 votes

4 answers

3k views

Have any bits of a space mission ever collided with a planet or large moon (not Earth) that was not a target of the mission?

CommunityBot

1

modified Mar 22 at 12:12

3 votes

2 answers

3k views

Google maps for Space exploration

SE - stop firing the good guys

40.5k

modified Mar 5 at 11:15

11 votes

1 answer

3k views

How close was the ISS to running out of supplies after the failure of CRS-7?

caInstrument

507

modified Mar 21 at 14:08

11 votes

3 answers

3k views

How can you make a rocket quieter?

Philip Roe

99

answered Mar 1 at 2:06

10 votes

1 answer

2k views

Would the reflected sun's radiation melt ice in LEO?

CommunityBot

1

modified Mar 1 at 8:32

20 votes

1 answer

2k views

What was the most inconsequential failure on an STS mission recorded in mission reports?

Organic Marble

171k

modified yesterday

10 votes

1 answer

1k views

What is pictured in this SHERLOC camera?

Organic Marble

171k

modified Mar 2 at 17:01

5 votes

2 answers

1k views

After SLS, what is the next rocket building project for NASA?

Jörg W Mittag

16.8k

answered Feb 25 at 22:05

8 votes

2 answers

530 views

Are there any sources with high-confidence state vectors for GRAIL-A?

Ryan C

6,753

answered Mar 6 at 20:15

9 votes

1 answer

1k views

Sending a Soyuz ship interplanetary - a plausible option?

GremlinWranger

19.2k

answered Mar 6 at 1:04

9 votes

3 answers

601 views

Can Martian regolith be easily melted with microwaves?

codeMonkey

1,128

modified Mar 6 at 16:12

-2 votes

3 answers

269 views

Can Solid Rockets (Aluminum-Ice) have an advantage when designing light space-tug for LEO?

user438383

105

modified Mar 19 at 16:38

6 votes

1 answer

710 views

How close do gravitational 2-body hierarchy levels get?

Slarty

7,796

answered Mar 12 at 22:37

6 votes

2 answers

227 views

Is it possible to create an analytical ephemeris from raw position and velocity of a Body?

HK JR

319

answered Mar 13 at 22:57

6 votes

1 answer

461 views

Why will Artemis II not orbit the Moon?

Infinite_Maelstrom

196

modified Mar 8 at 1:00

3 votes

1 answer

211 views

What is a Mars 5-sol orbit?

Erin Anne

6,850

modified yesterday

-1 votes

1 answer

331 views

What happens if the range control fails?

Starship is go for launch

1

modified Mar 5 at 15:52

2 votes

1 answer

193 views

How many printed novels have been in space to date?

The Rocket fan

3,789

modified Mar 18 at 20:10

-2 votes

1 answer

187 views

Why is insulation used in spacecraft thermal control?

caInstrument

507

modified Mar 5 at 16:54

2 votes

1 answer

142 views

Mirror size and pixel resolution on planetary surfaces

caInstrument

507

modified Mar 5 at 17:24

4 votes

2 answers

173 views

Starship deorbit process

Jon point of gold

49

answered 2 days ago

4 votes

1 answer

125 views

Would it make sense to compress air around a bell nozzle during booster ascent?

Christopher James Huff

9,284

answered Mar 14 at 16:29

2 votes

1 answer

185 views

Papers/studies about shedding aerodynamic lifting surfaces with booster

RegenerativelyCooledAstronaut

127

modified Mar 11 at 1:31

2 votes

2 answers

164 views

Why is the Ariane 5 shorter than the Ariane 4?

geoffc

78.6k

answered Feb 24 at 19:18

0 votes

1 answer

98 views

Are Falcon Heavy fairings reused?

Moo

268

modified Mar 16 at 1:05

7 votes

1 answer

95 views

Establish if Payload is Still Operational - Space Track

ScottishTapWater

410

answered Mar 13 at 3:20

4 votes

1 answer

121 views

Has Spacex released any reports describing how they are going to secure the payload on Starship?

Rory Alsop♦

13.6k

modified Mar 13 at 9:24

-1 votes

1 answer

116 views

Why did the maiden flight of H3 fail?

David Hammen

71.4k

answered Mar 10 at 11:30

3 votes

1 answer

143 views

How can you find out how many times a SpaceX fairing has been reused?

Jörg W Mittag

16.8k

answered Mar 4 at 10:54

3 votes

1 answer

81 views

How much ice is there in the inner asteroid belt?

codeMonkey

1,128

answered yesterday

-1 votes

1 answer

145 views

Why didn't Electron's first stage go "There and Back Again"?

Jörg W Mittag

16.8k

answered Mar 21 at 17:36

2 votes

1 answer

160 views

Why do the Falcon 9 fairings have soot on them?

Erin Anne

6,850

answered Mar 1 at 23:47

1 vote

1 answer

123 views

What will be the escape velocity for a human body?

Russell Borogove

164k

answered Feb 25 at 16:21

3 votes

1 answer

157 views

When chopsticks catch the booster by the grid fins, what is the maximum vertical speed?

Starship is go for launch

1

modified Mar 20 at 15:56

3 votes

1 answer

121 views

Are the Delta IV Heavy’s attachments for SRBs removable?

Erin Anne

6,850

modified Mar 22 at 19:13

3 votes

1 answer

154 views

After the Challenger disaster, the Fixed Service Structures on pads 39A & B had a new structure on the FSS. What is it?

GandalfDDI

878

answered Feb 28 at 4:16

3 votes

0 answers

229 views

How is this estimation so off?

808kalli

47

modified Mar 12 at 13:58

2 votes

1 answer

102 views

Were the distances traversed by Perseverance on Sol 718 and 719 each exactly 415.27 m or were they added together 415.27 m and if so, why?

Erin Anne

6,850

modified Mar 6 at 23:10

0 votes

1 answer

154 views

How long would it take before we use up all the ice in the asteroid belt? [closed]

Erin Anne

6,850

modified yesterday

4 votes

1 answer

55 views

How does one use the SEAESRT charging hazard graphic that NOAA provides?

fyrepenguin

1,045

answered Mar 7 at 12:14

0 votes

1 answer

148 views

Could an ICBM self-destruct? [closed]

Starship is go for launch

1

modified Mar 14 at 20:45

7 votes

0 answers

143 views

SpaceX Super Heavy booster: Is it publicly known whether the failure of one engine to start prior to liftoff will result in a pad abort?

Organic Marble

171k

modified Mar 1 at 18:19

1 vote

1 answer

108 views

Need advice to set up reaction wheel cluster in lab

Woody

13.9k

modified 2 days ago

0 votes

1 answer

173 views

How does SpaceX get through regulatory issues so quickly?

Ryan C

6,753

modified Mar 17 at 15:20

4 votes

0 answers

173 views

Does a RTLS (Return to Launch Site) landing deposit more soot on the booster than a landing on a drone ship?

Starship is go for launch

1

modified Mar 18 at 23:50

1 vote

1 answer

104 views

How do "halo orbits" save on propellent (delta-v)?

Michael Stachowsky

6,180

answered Mar 20 at 18:05

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