Top ten questions (all questions)

1. Is the Moon moving away from the Earth? When was this discovered? (viewed 205753 times)
2. How do I build a model rocket? (viewed 177263 times)
3. What color is each planet? (viewed 168400 times)
4. What is the life cycle of a star? (viewed 150031 times)
5. How far is each planet from Earth? (viewed 141992 times)
6. How do you measure the distance between Earth and the Sun? (viewed 138033 times)
7. What is the largest star? (viewed 120914 times)
8. What's going to happen on December 21st 2012? (viewed 120675 times)
9. What is a white hole? (viewed 113470 times)
10. What color is Venus? (viewed 100884 times)

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