User SF.

78 votes

4 answers

13k views

How do astronauts on EVA deal with nose itching?

asked Dec 10, 2015 at 9:19

47 votes

6 answers

10k views

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

asked Apr 4, 2017 at 14:28

46 votes

2 answers

5k views

Using ozone as oxidizer

asked Dec 19, 2016 at 13:44

45 votes

3 answers

9k views

Did the Galileo spacecraft cause a "blotch" on Jupiter after it crashed?

asked Jul 31, 2013 at 12:12

39 votes

3 answers

15k views

Why decommission the ISS?

asked Jul 17, 2013 at 12:05

35 votes

3 answers

8k views

What is the primary reason for SpaceX motion to have astronauts board Dragon before fueling up the rocket?

asked Aug 21, 2018 at 13:47

34 votes

3 answers

21k views

Do any (LEO) satellites move east-to-west?

asked Jul 29, 2013 at 8:04

34 votes

1 answer

6k views

Laundry on the ISS

asked Feb 4, 2016 at 8:15

30 votes

6 answers

6k views

What crewed space flight landed farthest off-target?

asked Mar 3, 2017 at 11:28

29 votes

1 answer

4k views

When/where did the cosmonauts fight wolves?

asked Dec 2, 2015 at 19:32

29 votes

3 answers

6k views

How can I intuitively understand gravity assists?

asked Jun 12, 2015 at 7:58

26 votes

5 answers

2k views

Gliding into the atmosphere

asked Nov 9, 2015 at 18:13

26 votes

2 answers

3k views

Why did Salyut 7 freeze over, while ISS requires massive cooling system?

asked Jul 23, 2016 at 11:25

26 votes

4 answers

4k views

Why aren't payloads their own fairings?

asked Jun 20, 2018 at 22:08

25 votes

6 answers

6k views

How much more expensive are scientific instruments for space use?

asked Jun 3, 2018 at 20:39

25 votes

3 answers

5k views

How serious a problem can outgassing of satellites be?

asked Sep 21, 2016 at 10:27

25 votes

1 answer

5k views

What satellites did the Shuttle retrieve from orbit?

asked May 2, 2016 at 4:07

24 votes

4 answers

3k views

Why is the Pressurized Mating Adapter slanted?

asked Dec 25, 2016 at 2:35

24 votes

1 answer

10k views

Which artificial satellites in lunar orbit are currently active?

asked Jul 17, 2013 at 10:49

24 votes

5 answers

6k views

Do we still have all the blueprints to go to the Moon? [duplicate]

asked May 26, 2017 at 11:23

23 votes

3 answers

15k views

Does Mars space suit have to be pressurized?

asked Jul 24, 2013 at 15:09

23 votes

2 answers

5k views

Could the shuttle's SRB alone reach orbit?

asked Nov 25, 2015 at 11:14

23 votes

1 answer

1k views

What landings beyond Mars and the Moon are scheduled?

asked Jun 15, 2016 at 20:44

21 votes

3 answers

7k views

How was fuel crossfeed achieved, between the main tank and the Shuttle?

asked Oct 17, 2016 at 9:12

19 votes

6 answers

8k views

What limits the speed of space probes currently?

asked Jul 25, 2013 at 8:03

19 votes

1 answer

803 views

What contributes the majority of the mass in an ion drive?

asked Jul 29, 2013 at 8:13

19 votes

2 answers

3k views

How deep is the force well of L4 and L5 Lagrangian Points of Earth-Sun set?

asked Jul 17, 2013 at 11:32

19 votes

1 answer

764 views

What is done between a scrub and the next launch attempt?

asked May 29, 2020 at 13:54

18 votes

1 answer

3k views

Did the Perseverance and Curiosity skycranes land gently, or did they crash?

asked Mar 2, 2021 at 0:16

18 votes

3 answers

3k views

How does SpaceX plan to deal with boiloff on the trip to Mars?

asked Sep 27, 2018 at 0:25

Stack Exchange Network

210 Questions

How do astronauts on EVA deal with nose itching?

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

Using ozone as oxidizer

Did the Galileo spacecraft cause a "blotch" on Jupiter after it crashed?

Why decommission the ISS?

What is the primary reason for SpaceX motion to have astronauts board Dragon before fueling up the rocket?

Do any (LEO) satellites move east-to-west?

Laundry on the ISS

What crewed space flight landed farthest off-target?

When/where did the cosmonauts fight wolves?

How can I intuitively understand gravity assists?

Gliding into the atmosphere

Why did Salyut 7 freeze over, while ISS requires massive cooling system?

Why aren't payloads their own fairings?

How much more expensive are scientific instruments for space use?

How serious a problem can outgassing of satellites be?

What satellites did the Shuttle retrieve from orbit?

Why is the Pressurized Mating Adapter slanted?

Which artificial satellites in lunar orbit are currently active?

Do we still have all the blueprints to go to the Moon? [duplicate]

Does Mars space suit have to be pressurized?

Could the shuttle's SRB alone reach orbit?

What landings beyond Mars and the Moon are scheduled?

How was fuel crossfeed achieved, between the main tank and the Shuttle?

What limits the speed of space probes currently?

What contributes the majority of the mass in an ion drive?

How deep is the force well of L4 and L5 Lagrangian Points of Earth-Sun set?

What is done between a scrub and the next launch attempt?

Did the Perseverance and Curiosity skycranes land gently, or did they crash?

How does SpaceX plan to deal with boiloff on the trip to Mars?