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Saturn V's user avatar
Saturn V's user avatar
Saturn V
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11 votes
3 answers
2k views

An alternative architecture for a mission to Mars

25 votes
5 answers
6k views

Why is it so hard to build a closed-loop ecological life support system?

2 votes
1 answer
255 views

Composite pressure vessels for manned spaceflight

6 votes
1 answer
877 views

Manned Spacecraft/Space Station design Requirements

23 votes
3 answers
8k views

Why aren't the radiators on the ISS straight?

1 vote
1 answer
86 views

What is the relationship between the power supply system and the thermal control system?

-2 votes
1 answer
245 views

Why is insulation used in spacecraft thermal control?

3 votes
1 answer
826 views

How are oxygen and nitrogen replenished in the storage tanks on the ISS?

3 votes
1 answer
178 views

What do the module walls look like on the ISS?

8 votes
1 answer
191 views

What is the longest working cubesat?

4 votes
1 answer
267 views

What will be the pressure inside the Orion spacecraft?

8 votes
1 answer
1k views

How does air circulate between modules on the ISS?

11 votes
1 answer
2k views

How many kg of air escape from the Quest airlock during one EVA?

3 votes
1 answer
798 views

Life support system weight estimate

3 votes
1 answer
84 views

Secondary radiation on the moon? (reference request)