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  1. How can the stars in our Galaxy be older than the Universe?
  2. All other galaxies in the Universe are moving away from the Milky Way; does that mean we are at the center of the expanding universe?
  3. Will the universe collapse some day?
  4. What was Herschel's theory about the structure of the universe?
  5. What is outside the universe?
  6. I have questions about the Big Bang and relativity.
  7. Why are the spins of galaxies randomly oriented?
  8. If space is expanding, is the space within a galaxy expanding as well?
  9. If you travel faster than the speed of light, can you go back in time?