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1 vote
2 answers
70 views

Large projectiles vs heavy personal armor

2 votes
2 answers
248 views

Could my Adnaps exist?

2 votes
2 answers
170 views

Could harvesting antimatter from a Gas giant's van Allen Belts be feasible?

19 votes
7 answers
4k views

Could the Soviet Union have hidden the launch of the first satellite?

8 votes
4 answers
1k views

States causing cancer in enemy politicians, spies, world-leaders

5 votes
5 answers
759 views

Is a religion which allows cyborgs but not AI or genetic engineering realistic?

1 vote
2 answers
147 views

Is this an accurate environment for life on a super Earth speculatively?

0 votes
3 answers
179 views

Is my environmental map consistent?

1 vote
2 answers
64 views

Could a planetary disk create a shared atmosphere?

3 votes
2 answers
114 views

Is there any feasible way for Antarctica have hidden oases?

7 votes
3 answers
1k views

Can Mars disintegrate entirely in this scenario?

23 votes
3 answers
3k views

How to design tentacle massage machine?

26 votes
10 answers
5k views

Can a habitable world rain glass?

2 votes
1 answer
48 views

What atmospheric pressure and temperature are reasonable to maintain water on a low gravity planet?

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