Top network posts
- 21 A feasible and efficient method of fast global travel?
- 18 Could you fly a Boeing 747 on Venus?
- 13 Could you live in underground lava tubes on Venus?
- 11 Guns in space with bullets that return?
- 8 Can you make a star from other gases, and how long would they last?
- 7 Implications of cigar-shaped bodies having rings?
- 6 Can you replicate a being's DNA just from observing it?
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