Top network posts
- 152 An Earth-like planet is found in another solar system. What are the top priorities after landing in order to create a self-sustaining colony?
- 83 Electricity free spaceship
- 79 Building a road to escape Earth's gravity by making a pyramid on Antartica
- 77 Justifying the use of directed energy weapons
- 73 What does the view outside my ship traveling at light speed look like?
- 72 Is it possible for a moon to have a higher surface gravity than the planet it is attached to?
- 67 Killing a star safely
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