User uhoh

96 votes

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Are there any satellites in geosynchronous but not geostationary orbits?

answered Jul 19, 2019 at 4:16

68 votes

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Why vent $CO_2$ and $H_2$ waste products to space on ISS?

answered Aug 7, 2016 at 13:53

67 votes

Is pinging the Moon with a laser as shown on "The Big Bang Theory" possible?

answered Aug 16, 2018 at 13:53

59 votes

Why didn't the Space Shuttle bounce back into space as many times as possible so as to lose a lot of kinetic energy up there?

answered Apr 24, 2019 at 2:37

58 votes

The dreaded apocalyptic asteroid approaches Earth but lands safely on the Moon at zero relative velocity

answered Nov 29, 2018 at 11:55

56 votes

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Why is JWST parked in sunlight, rather than using a nuclear battery?

answered Dec 27, 2021 at 20:59

54 votes

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Could a space colony 1g from the sun work?

answered May 14, 2019 at 4:58

49 votes

Why does the sky of Mars appear blue in this video of pictures sent back by the Chinese rover?

answered May 22, 2021 at 22:13

44 votes

Is the SpaceX Falcon Heavy payload (a Tesla car) space junk?

answered Feb 7, 2018 at 13:26

43 votes

Why did multiple nations decide to launch Mars projects at exactly the same time?

answered Feb 20, 2021 at 9:51

41 votes

Is Nibiru real or totally science fiction?

answered Jul 22, 2018 at 1:57

34 votes

What would it take to get a message to another star?

answered Aug 13, 2019 at 23:52

33 votes

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How is the altitude of a satellite defined, given that the Earth is not spherical?

answered Nov 28, 2017 at 11:01

33 votes

What impact will the deorbiting of thousands of satellites have on the atmosphere?

answered Sep 1, 2020 at 12:07

30 votes

Which LEO satellite lost over 30 km of altitude in the geomagnetic storm of 13-14 March 1989?

answered Apr 12, 2018 at 0:39

30 votes

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Are images of exoplanets' surfaces technically possible?

answered Nov 2, 2018 at 9:22

30 votes

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How far have astronauts been in space?

answered Dec 30, 2018 at 10:36

29 votes

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How can electronics on board JWST survive the low operating temperature while it's difficult to survive lunar nights?

answered Jul 20, 2019 at 15:21

28 votes

Could a spy satellite in orbit be recommissioned to do astronomy?

answered Feb 18, 2018 at 13:43

28 votes

Is it ethical for Chang'e-4 to bring an entire ecosystem to the moon?

answered Jan 11, 2019 at 16:28

27 votes

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Why are RTGs different colors?

answered Jun 26, 2019 at 3:06

27 votes

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Why do SpaceX expect the Falcon 9 rocket to explode during the in flight abort test?

answered Jan 13, 2020 at 1:53

26 votes

What artificial satellite has the farthest orbit around the Earth?

answered May 11, 2018 at 7:39

26 votes

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slowest crash on the Moon?

answered Sep 2, 2019 at 23:23

26 votes

instead of pressurizing an entire spacesuit with oxygen could oxygen just pressurize the head and the rest of the body be pressurized with water?

answered Oct 16, 2019 at 1:51

26 votes

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Is Quantum Entanglement technology possible for interplanetary communication in future to achieve low real-time latency?

answered Nov 28, 2018 at 4:38

26 votes

Question on giant satellite orbit

answered Nov 1, 2018 at 5:20

26 votes

Why doesn't the ISS orient itself to the Earth's magnetic field like a compass needle?

answered Jun 28, 2021 at 22:38

25 votes

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Potential high temperature power sources for a Venus lander

answered Mar 22, 2017 at 12:46

25 votes

How were these pictures of spacecraft wind tunnel testing taken?

answered May 27, 2019 at 0:03

Stack Exchange Network

1,235 Answers

Are there any satellites in geosynchronous but not geostationary orbits?

Why vent $CO_2$ and $H_2$ waste products to space on ISS?

Is pinging the Moon with a laser as shown on "The Big Bang Theory" possible?

Why didn't the Space Shuttle bounce back into space as many times as possible so as to lose a lot of kinetic energy up there?

The dreaded apocalyptic asteroid approaches Earth but lands safely on the Moon at zero relative velocity

Why is JWST parked in sunlight, rather than using a nuclear battery?

Could a space colony 1g from the sun work?

Why does the sky of Mars appear blue in this video of pictures sent back by the Chinese rover?

Is the SpaceX Falcon Heavy payload (a Tesla car) space junk?

Why did multiple nations decide to launch Mars projects at exactly the same time?

Is Nibiru real or totally science fiction?

What would it take to get a message to another star?

How is the altitude of a satellite defined, given that the Earth is not spherical?

What impact will the deorbiting of thousands of satellites have on the atmosphere?

Which LEO satellite lost over 30 km of altitude in the geomagnetic storm of 13-14 March 1989?

Are images of exoplanets' surfaces technically possible?

How far have astronauts been in space?

How can electronics on board JWST survive the low operating temperature while it's difficult to survive lunar nights?

Could a spy satellite in orbit be recommissioned to do astronomy?

Is it ethical for Chang'e-4 to bring an entire ecosystem to the moon?

Why are RTGs different colors?

Why do SpaceX expect the Falcon 9 rocket to explode during the in flight abort test?

What artificial satellite has the farthest orbit around the Earth?

slowest crash on the Moon?

instead of pressurizing an entire spacesuit with oxygen could oxygen just pressurize the head and the rest of the body be pressurized with water?

Is Quantum Entanglement technology possible for interplanetary communication in future to achieve low real-time latency?

Question on giant satellite orbit

Why doesn't the ISS orient itself to the Earth's magnetic field like a compass needle?

Potential high temperature power sources for a Venus lander

How were these pictures of spacecraft wind tunnel testing taken?