Previously answered questions by Ryan Anderson

(in order of times viewed)

1. Can artificial gravity be created in space?
2. How do rockets work?
3. Why hasn't NASA gone back to the moon?
4. Are aliens or UFOs real?
5. How do we know what other planets (and stars, galaxies, etc.) are made of?
6. Do asteroids hit the sun?
7. How big is the Hubble Ultra Deep Field image?
8. If comets are boiling away, why are there any left?
9. How do we know the density of some extrasolar planets?
10. If the sun went out and our atmosphere froze solid, what color would it be?
11. Has anyone ever seen a star "turn on"?
12. Does weightlessness affect hunger?
13. Why are craters round?
14. What would happen if a nuclear-powered shuttle exploded?

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