Top network posts
- 21 A feasible and efficient method of fast global travel?
- 18 Could you fly a Boeing 747 on Venus?
- 17 How to get a green gas giant?
- 13 Could you live in underground lava tubes on Venus?
- 11 Guns in space with bullets that return?
- 9 Alcohol-based organisms?
- 8 Would it be possible to survive on a world with only plants?
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