Rotating Question Curious About Astronomy? Ask an Astronomer

Previously answered questions by Sabrina Stierwalt

(in order of times viewed)

  1. Can we feel the Earth spin?
  2. How do rockets work?
  3. What do astronauts do all day in the International Space Station?
  4. Can moons have moons?
  5. What's the difference between dark matter and dark energy?
  6. Is the Moon seen as a crescent (and not a "boat") all over the world? Is the same phase of the moon visible from the Northern and Southern hemispheres?
  7. Is the speed of light constant?
  8. Why is the sky blue and not blue & purple?
  9. What is a wormhole?
  10. What if the Earth rotated twice as fast?
  11. How do we determine the age of the universe?
  12. What can I use for fuel in my homemade rocket?
  13. How are planets detected around other stars?
  14. Why is Uranus tipped on its side?
  15. What happens when an antimatter black hole collides with a matter blackhole?
  16. Can a human give birth in space?
  17. How are sunspots formed?
  18. How do photons from distant objects maintain enough energy to reach us?
  19. Does lunar gardening really work?
  20. Could neutrinos be dark matter?
  21. What is Hot Dark Matter theory?
  22. What do meteorites tell us about life on other planets?
  23. Can we harvest H & O from space to make water?
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URL: http://curious.astro.cornell.edu/authorlist.php?number=21
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Last modified: November 19, 2007 11:28:35 AM

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