Earth Science Astronomy Review

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Across
  1. 4. NEW space telescope that can see further/clearer
  2. 7. the largest planet. a gas giant
  3. 8. the first object in space. looks like a metal volleyball with spikes coming out of it
  4. 10. scientist who discovered distant objects are moving faster. telescope named after him
  5. 12. phase that a small main sequence star goes through after it runs out of hydrogen
  6. 14. ball of ice and dust that orbits the sun, such as Haley's
  7. 16. space shuttle that exploded
  8. 19. another term for gas giants. starts with a j
  9. 20. last name of the first AMERICAN in space
  10. 21. explosion of a massive star
  11. 22. outer planets have MANY _________
Down
  1. 1. a cloud of gas/dust. stars are born here
  2. 2. HR diagrams measure stars by brightness and _________
  3. 3. area of extreme gravity created after a supernova
  4. 5. the longest phase of the star lifecycle
  5. 6. way that light is stretched for objects moving further away
  6. 9. most common element in universe. fuses to make helium in stars
  7. 11. theory of how the universe began
  8. 13. thing that separates inner and outer planets
  9. 15. chimpanzee sent into space
  10. 17. last name of first human in space (a russian guy)
  11. 18. 2nd planet from the sun