User Tristan

84 votes

Accepted

Do booster stages run out of fuel, or are they purposefully shut off?

answered May 30, 2017 at 1:46

77 votes

Accepted

Why would a box full of 1cm balls released into LEO be so scary to an engineer supporting the ISS?

answered Jun 9, 2017 at 19:04

59 votes

What is that haze on Starman's windshield?

answered Feb 12, 2018 at 14:25

58 votes

Why has the ISS not been left unmanned?

answered Apr 12, 2017 at 17:19

52 votes

Could the shuttle wait out the whole burn of SRBs on launchpad in case of a problem on launch?

answered Apr 4, 2017 at 15:04

46 votes

What are the chances that a spacecraft is hit by space junk?

answered Jun 25, 2021 at 23:19

44 votes

Accepted

Why didn't the SRBs of the Space Shuttle use carbon instead of aluminium?

answered May 11, 2017 at 16:58

41 votes

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Is it possible to observe space debris with Binoculars?

answered Sep 3, 2019 at 14:15

37 votes

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What happens to astronaut sweat on the ISS?

answered Sep 9, 2020 at 18:51

36 votes

Pre-mixing cryogenic fuels and using only one fuel tank

answered Mar 21, 2019 at 17:42

36 votes

Accepted

Does SpaceX use any of Falcon-9's camera data for engineering or status information, or are they "just for PR"?

answered Jan 27, 2017 at 16:23

35 votes

Why does the ISS rotate exactly once per orbit?

answered Oct 15, 2015 at 18:58

33 votes

Why does a rocket engine provide more thrust in a vacuum than in atmosphere?

answered Oct 18, 2013 at 13:34

33 votes

Did the soft-landing rockets malfunction in the Soyuz (expedition 50 crew) landing?

answered Apr 10, 2017 at 13:59

28 votes

Would launching a shuttle from a 45 degree angle be the most fuel efficient for a rail gun?

answered Nov 13, 2017 at 20:18

27 votes

Accepted

What are ISS orbit's sudden falls?

answered Feb 10, 2021 at 18:15

25 votes

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Did the U.S. Space Shuttles have a way for crew to bail out?

answered Apr 6, 2021 at 15:13

25 votes

Accepted

What would the procedure be in the event of a collision warning on the ISS

answered Oct 2, 2017 at 14:33

23 votes

Why is SpaceX considering Methane as fuel for their next engine, the Raptor?

answered Dec 18, 2013 at 19:35

22 votes

Were any toxic metals used in the International Space Station?

answered May 13, 2019 at 13:46

21 votes

Apollo simulator practical jokes

answered Jul 30, 2018 at 16:21

20 votes

Accepted

Why were Delta II SRBs asymmetrically mounted?

answered Feb 10, 2015 at 16:06

19 votes

Accepted

Why does the ISS viewing times go through repetitive patterns of being always morning or always evening?

answered Oct 16, 2015 at 16:37

18 votes

Accepted

Why is the Sokol spacesuit considered inadequate for EVA?

answered Dec 10, 2013 at 23:08

17 votes

Accepted

Do ISS astronauts notice, or experience symptoms of elevated CO2 levels? Do they wear monitors regularly?

answered Jan 24, 2018 at 18:44

16 votes

Where does the thrust act in a rocket engine and how is it transferred to rocket structure?

answered Jan 23, 2018 at 15:35

16 votes

Accepted

Artificial Shooting Stars - how could this possibly work (economically/technologically)?

answered Jun 9, 2017 at 17:46

16 votes

Accepted

Do American astronauts wear Sokol space suits when flying on a Soyuz?

answered Dec 10, 2013 at 22:54

16 votes

Accepted

Why do some struts used in aerospace vehicle structures taper at the ends?

answered Sep 19, 2019 at 14:50

15 votes

India just shot down a satellite from the ground. At what altitude range is the resulting debris field?

answered Mar 27, 2019 at 14:38

Stack Exchange Network

138 Answers

Do booster stages run out of fuel, or are they purposefully shut off?

Why would a box full of 1cm balls released into LEO be so scary to an engineer supporting the ISS?

What is that haze on Starman's windshield?

Why has the ISS not been left unmanned?

Could the shuttle wait out the whole burn of SRBs on launchpad in case of a problem on launch?

What are the chances that a spacecraft is hit by space junk?

Why didn't the SRBs of the Space Shuttle use carbon instead of aluminium?

Is it possible to observe space debris with Binoculars?

What happens to astronaut sweat on the ISS?

Pre-mixing cryogenic fuels and using only one fuel tank

Does SpaceX use any of Falcon-9's camera data for engineering or status information, or are they "just for PR"?

Why does the ISS rotate exactly once per orbit?

Why does a rocket engine provide more thrust in a vacuum than in atmosphere?

Did the soft-landing rockets malfunction in the Soyuz (expedition 50 crew) landing?

Would launching a shuttle from a 45 degree angle be the most fuel efficient for a rail gun?

What are ISS orbit's sudden falls?

Did the U.S. Space Shuttles have a way for crew to bail out?

What would the procedure be in the event of a collision warning on the ISS

Why is SpaceX considering Methane as fuel for their next engine, the Raptor?

Were any toxic metals used in the International Space Station?

Apollo simulator practical jokes

Why were Delta II SRBs asymmetrically mounted?

Why does the ISS viewing times go through repetitive patterns of being always morning or always evening?

Why is the Sokol spacesuit considered inadequate for EVA?

Do ISS astronauts notice, or experience symptoms of elevated CO2 levels? Do they wear monitors regularly?

Where does the thrust act in a rocket engine and how is it transferred to rocket structure?

Artificial Shooting Stars - how could this possibly work (economically/technologically)?

Do American astronauts wear Sokol space suits when flying on a Soyuz?

Why do some struts used in aerospace vehicle structures taper at the ends?

India just shot down a satellite from the ground. At what altitude range is the resulting debris field?