User Mark Foskey

74 votes

Accepted

Why were the Voyager spacecraft numbered "out-of-order"?

answered Nov 12, 2018 at 13:03

53 votes

Does Virgin Galactic experience real weightlessness?

answered Jul 6, 2021 at 17:38

42 votes

Why doesn’t NASA build its rockets using graphene?

answered May 10, 2022 at 16:59

37 votes

Accepted

Why did Saturn V not head straight to the moon?

answered Jul 26, 2019 at 5:02

31 votes

If an astronaut threw a cup of coffee into space, would it freeze, or boil off into gas?

answered Jun 15, 2021 at 3:55

29 votes

Why are probes that tend to explore outer system always launched to go outwards instead of straight upwards or downwards?

answered Jan 3, 2019 at 18:43

28 votes

Is it possible for a moon to have a higher surface gravity than the planet it is attached to?

answered Dec 4, 2019 at 4:24

28 votes

Why was the imaging quality of the Voyager probes much better than the Pioneer probes despite being launched only 5 years later?

answered Aug 1, 2020 at 3:21

23 votes

Accepted

If Earth had a second moon, where would it be positioned?

answered Oct 15, 2022 at 3:18

20 votes

If a spaceship ran out of fuel somewhere in space between Earth and Mars, does it slowly drift off to the Sun?

answered Sep 22, 2019 at 4:54

19 votes

Accepted

Why did Neil Armstrong alone, not NASA, end up coming up with the first words uttered on the moon?

answered Nov 17, 2018 at 5:45

17 votes

Could a satellite survive for thousands of years in a high enough orbit?

answered Sep 6, 2018 at 16:03

12 votes

Accepted

Could a ball of water stay in orbit?

answered Nov 21, 2018 at 3:29

11 votes

Accepted

Why don't I find the concept of cosmic velocities in western space-related materials?

answered Dec 28, 2016 at 16:05

10 votes

Why is it so hard to land on the Moon?

answered Oct 5, 2019 at 0:29

10 votes

Is the far side of the tidally locked Europa moon safe from Jupiter's radiation?

answered Nov 5, 2019 at 0:29

9 votes

Accepted

Why didn't the Apollo 13 crew wear their spacesuits in the LM?

answered Dec 27, 2018 at 17:13

8 votes

Curiosity and Perseverance landing - with so much dust blown everywhere, what's the point of the skycrane?

answered Mar 1, 2021 at 3:31

8 votes

Is the zero gravity experienced in ISS the "artificial" kind?

answered Jul 19, 2021 at 1:23

8 votes

When was advertising on Earth from space first proposed? By who?

answered Aug 12, 2021 at 0:41

8 votes

Why fly to the moon when you can fly away?

answered Aug 19, 2022 at 16:56

8 votes

Using 2023 technology, how low can a satellite orbit earth?

answered Dec 31, 2022 at 20:48

7 votes

Accepted

Can Juno use Jupiter's gravity to alter its orbit so that it goes close to Himalia?

answered Oct 18, 2022 at 18:15

7 votes

What caused the jitter in the DART video as it approached Dimorphos?

answered Sep 28, 2022 at 3:16

6 votes

Accepted

Are there any short-term survivable locations beyond the solar system?

answered Sep 22, 2022 at 4:45

6 votes

A black cube 1 mile per side appears in geosynchronous orbit around the earth. Who would spot it and how would they do it? How easy would it be?

answered Jan 18 at 6:12

6 votes

Accepted

What is the smallest object our current technology is capable of launching into space?

answered Dec 16, 2021 at 18:00

6 votes

Could Liquid Methane on Titan be used as a Heat Source?

answered Sep 18, 2018 at 4:25

6 votes

If 'space' is defined as the absence of everything, then why can it carry heat?

answered Jan 18, 2017 at 2:37

6 votes

Accepted

Are any of the planets in our solar system (other than Earth) inhabitable?

answered Feb 2, 2018 at 21:28

Stack Exchange Network

84 Answers

Why were the Voyager spacecraft numbered "out-of-order"?

Does Virgin Galactic experience real weightlessness?

Why doesn’t NASA build its rockets using graphene?

Why did Saturn V not head straight to the moon?

If an astronaut threw a cup of coffee into space, would it freeze, or boil off into gas?

Why are probes that tend to explore outer system always launched to go outwards instead of straight upwards or downwards?

Is it possible for a moon to have a higher surface gravity than the planet it is attached to?

Why was the imaging quality of the Voyager probes much better than the Pioneer probes despite being launched only 5 years later?

If Earth had a second moon, where would it be positioned?

If a spaceship ran out of fuel somewhere in space between Earth and Mars, does it slowly drift off to the Sun?

Why did Neil Armstrong alone, not NASA, end up coming up with the first words uttered on the moon?

Could a satellite survive for thousands of years in a high enough orbit?

Could a ball of water stay in orbit?

Why don't I find the concept of cosmic velocities in western space-related materials?

Why is it so hard to land on the Moon?

Is the far side of the tidally locked Europa moon safe from Jupiter's radiation?

Why didn't the Apollo 13 crew wear their spacesuits in the LM?

Curiosity and Perseverance landing - with so much dust blown everywhere, what's the point of the skycrane?

Is the zero gravity experienced in ISS the "artificial" kind?

When was advertising on Earth from space first proposed? By who?

Why fly to the moon when you can fly away?

Using 2023 technology, how low can a satellite orbit earth?

Can Juno use Jupiter's gravity to alter its orbit so that it goes close to Himalia?

What caused the jitter in the DART video as it approached Dimorphos?

Are there any short-term survivable locations beyond the solar system?

A black cube 1 mile per side appears in geosynchronous orbit around the earth. Who would spot it and how would they do it? How easy would it be?

What is the smallest object our current technology is capable of launching into space?

Could Liquid Methane on Titan be used as a Heat Source?

If 'space' is defined as the absence of everything, then why can it carry heat?

Are any of the planets in our solar system (other than Earth) inhabitable?