How much gravity (and/or magnetic field) would a space ship need to generate to hold an atmosphere around it?
13452
Can low-gravity planets sustain a breathable atmosphere?
76433
How strong can an electromagnet be?
73673
What is gravity and what causes objects to act against it?
16388
Are static magnetic and electric fields distorted by gravity? How?
31246
How much thrust would be needed to turn a hobbyist weather balloon into a deep space probe?
141215
What's the technical explanation for gravity to exist inside a spacecraft in science fiction?
120596
Do atmospheric physics prevent hot air balloons from ascending over 60,000ft?
43505
Why is there no gravitational magnetic field? (Or, is there?)
144876
Potential for a general fictitious force?
96010
Must every magnetic configuration have a north and south pole?
51304
Is it theoretically possible to shield gravitational fields or waves?
124819
What is the possibility of a railgun assisted orbital launch?
1011
Would a pipe from the surface to the Earth's exosphere suck all atmosphere to the space?
100308
Temperature in space
128817
What is the source of Earth's magnetic field?
76839
Maximal Gravity
18257
How can interstellar space have a temperature of 2-3K?