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Top ten questions (all questions)

  1. What's going to happen on December 21st 2012? (viewed 2128674 times)
  2. What color is each planet? (viewed 903671 times)
  3. At what speed does the earth move around the sun? (viewed 578273 times)
  4. Is the Moon moving away from the Earth? When was this discovered? (viewed 557125 times)
  5. How far is each planet from Earth? (viewed 466051 times)
  6. When will Halley's Comet return? (viewed 420566 times)
  7. How long does it take for the Sun's light to reach us? (viewed 387526 times)
  8. How many stars are there in our Galaxy (Milky Way)? (viewed 387143 times)
  9. Why do the planets orbit the sun? (viewed 375113 times)
  10. What is the universe expanding into? (viewed 368902 times)
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