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Top ten questions (all questions)

  1. What's going to happen on December 21st 2012? (viewed 2126995 times)
  2. What color is each planet? (viewed 899966 times)
  3. At what speed does the earth move around the sun? (viewed 575179 times)
  4. Is the Moon moving away from the Earth? When was this discovered? (viewed 554094 times)
  5. How far is each planet from Earth? (viewed 464442 times)
  6. When will Halley's Comet return? (viewed 419139 times)
  7. How many stars are there in our Galaxy (Milky Way)? (viewed 386543 times)
  8. How long does it take for the Sun's light to reach us? (viewed 386387 times)
  9. Why do the planets orbit the sun? (viewed 373467 times)
  10. What is the universe expanding into? (viewed 367968 times)
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