- How can astronomers know things for certain since they only look at space from one vantage point?
- I know that the gravity of the moon causes ocean tides on earth. How does centrifugal force cause the far-side bulge?
- What is it about a full moon that makes people do crazy things and commit crimes?
- Why does the moon get bigger when it's closer to the horizon?
- Why does the moon's gravity cause tides on earth but the sun's gravity doesn't?
- Why is the moon so bright?