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6 votes
5 answers
2k views

Can I cause a star to go supernova by altering the four fundamental forces?

16 votes
15 answers
4k views

Would Artificial Gravity With Short Range Be Possible?

3 votes
1 answer
117 views

Is it reasonable that my human-habitable alternate universe look different?

3 votes
5 answers
623 views

Air magic only used to decrease humidity and improve living conditions?

4 votes
1 answer
179 views

Spearguns without rubber?

1 vote
1 answer
57 views

Is it possible to create a rocky moon with high volcanic activity but that has underground water?

1 vote
1 answer
36 views

Estimating energy of tidal friction in alternative moon scenarios

6 votes
4 answers
210 views

What is the best kind of nuclear reactor to use for a criticality accident if I want to expose my crew to a huge amount of radiation?

8 votes
6 answers
2k views

Negative pressure projectile propellants (Alternatives to gunpowder)

5 votes
3 answers
1k views

Would mining asteroids cause meteorites

9 votes
12 answers
3k views

Logical/Scientific Explanation for Umbrakinesis?

51 votes
24 answers
15k views

What would be best way to re-melt Mars' mantle and core to revive its magnetosphere

4 votes
1 answer
93 views

Would the atmospheric circulation experienced on my world's high platforms seem to be reversed?

3 votes
1 answer
124 views

At what rate does my planet become tidally locked?

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