Activity for J-P
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: Can I significantly shorten the days on a planet that can support human life? Don't remove the moon. A large moon relative to the planet (Say 1:6 mass ratio as our is) stabilizes the axis of rotation, making for a stable set of repeating seasons that the animal and plant life can grow with. Will also want moon to revolve around the planet more slowly than the planet spins. A... (more) |
— | over 9 years ago |