User PearsonArtPhoto - Space Exploration Stack Exchange

89 votes

4 answers

18k views

How did Apollo 16 capture this full photograph of the Moon's far side?

asked Jul 8, 2016 at 14:11

39 votes

1 answer

5k views

Could the Saturn V actually have launched astronauts around Venus?

asked Mar 14, 2019 at 12:53

38 votes

4 answers

97k views

Why did Apollo mission numbering skip 2,3,4,5 and 6?

asked Oct 22, 2013 at 17:19

34 votes

2 answers

44k views

Why is the rotation rate of Venus so slow?

asked Oct 4, 2013 at 12:32

33 votes

2 answers

3k views

Why would NASA include a speaker on Curiosity?

asked Aug 7, 2013 at 19:06

33 votes

4 answers

6k views

Will the Falcon Heavy be far enough in 12 seconds to not cause damage?

asked Feb 5, 2018 at 16:04

32 votes

8 answers

5k views

How could one navigate on Mars?

asked Oct 28, 2013 at 12:48

30 votes

2 answers

18k views

What is a thrust puck on Starship?

asked Mar 2, 2020 at 19:32

28 votes

3 answers

3k views

Why are RTGs different colors?

asked Sep 7, 2016 at 15:03

27 votes

2 answers

1k views

Is there an independent cost estimate of the Mars One proposal?

asked Nov 18, 2013 at 19:00

26 votes

5 answers

6k views

How can you make a vacuum proof rotatable seal?

asked Oct 7, 2013 at 18:41

25 votes

2 answers

3k views

Optimal placement of 4 reaction wheels?

asked Jul 16, 2013 at 21:03

25 votes

2 answers

2k views

Is there a Martian "North Star", usable as Earth's North Star?

asked Oct 28, 2013 at 13:02

25 votes

1 answer

3k views

Was Amos 6 insured for pre-launch operations?

asked Sep 1, 2016 at 14:35

23 votes

1 answer

1k views

What is the South Atlantic Anomaly, and what can I do to protect satellites from it?

asked Jul 16, 2013 at 21:06

22 votes

3 answers

1k views

What is the probability of impact?

asked Jul 24, 2013 at 23:39

22 votes

2 answers

3k views

Where are the upper stages for the Voyager/Pioneer stages?

asked Sep 12, 2013 at 22:52

21 votes

3 answers

22k views

Why is the Far Side of the Moon so different from the Near Side?

asked Nov 1, 2013 at 19:55

20 votes

3 answers

24k views

Where were the various Apollo Lunar Modules (LMs) discarded?

asked Oct 22, 2013 at 14:09

20 votes

2 answers

127k views

What are the dark areas on the moon?

asked Sep 24, 2013 at 12:26

19 votes

2 answers

8k views

Was Valentina Tereshkova pregnant while in space?

asked Jul 13, 2015 at 23:51

19 votes

4 answers

1k views

What payload was expected for the 2018 Mars Dragon flight ("Red Dragon")

asked Apr 27, 2016 at 17:53

18 votes

2 answers

12k views

What is the math behind Magnetorquers?

asked Oct 1, 2013 at 17:42

18 votes

1 answer

315 views

Why did the HiRISE camera team choose the wavelengths they did?

asked Jul 21, 2013 at 15:03

17 votes

4 answers

4k views

Can materials be found to make plastic on Mars?

asked Oct 28, 2013 at 12:43

17 votes

2 answers

3k views

Was Alexander Gerst the first man to have bare skin exposed to the vacuum of space and live?

asked Sep 4, 2018 at 17:18

16 votes

3 answers

5k views

Could "live" video be transmitted from Mars?

asked Nov 26, 2018 at 14:04

16 votes

2 answers

6k views

Did some of the Shuttle fuel tanks actually orbit?

asked May 10, 2014 at 15:33

16 votes

1 answer

1k views

What is a "Sailboat Island of Stability"?

asked Jun 3, 2015 at 1:19

16 votes

3 answers

3k views

What pushes a spacecraft during a flyby?

asked Jul 6, 2015 at 14:42

Stack Exchange Network

131 Questions

How did Apollo 16 capture this full photograph of the Moon's far side?

Could the Saturn V actually have launched astronauts around Venus?

Why did Apollo mission numbering skip 2,3,4,5 and 6?

Why is the rotation rate of Venus so slow?

Why would NASA include a speaker on Curiosity?

Will the Falcon Heavy be far enough in 12 seconds to not cause damage?

How could one navigate on Mars?

What is a thrust puck on Starship?

Why are RTGs different colors?

Is there an independent cost estimate of the Mars One proposal?

How can you make a vacuum proof rotatable seal?

Optimal placement of 4 reaction wheels?

Is there a Martian "North Star", usable as Earth's North Star?

Was Amos 6 insured for pre-launch operations?

What is the South Atlantic Anomaly, and what can I do to protect satellites from it?

What is the probability of impact?

Where are the upper stages for the Voyager/Pioneer stages?

Why is the Far Side of the Moon so different from the Near Side?

Where were the various Apollo Lunar Modules (LMs) discarded?

What are the dark areas on the moon?

Was Valentina Tereshkova pregnant while in space?

What payload was expected for the 2018 Mars Dragon flight ("Red Dragon")

What is the math behind Magnetorquers?

Why did the HiRISE camera team choose the wavelengths they did?

Can materials be found to make plastic on Mars?

Was Alexander Gerst the first man to have bare skin exposed to the vacuum of space and live?

Could "live" video be transmitted from Mars?

Did some of the Shuttle fuel tanks actually orbit?

What is a "Sailboat Island of Stability"?

What pushes a spacecraft during a flyby?