space (kinda important ngl)

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Across
  1. 3. has gravity so dense not even light can escape it (has dashes instead of spaces in the name)
  2. 5. our closest star
  3. 6. a spot with nothing inside a part of the universe
  4. 8. name for extraterrestrial life
  5. 9. our galaxy (it has dashes instead of spaces in the name)
  6. 11. holds all galaxies
  7. 12. our planet
  8. 15. closest galaxy to the milky way
Down
  1. 1. biggest theory about space
  2. 2. created when a star dies
  3. 4. considered as anything that orbits a planet
  4. 7. believed to be the start of the universe (it has dashes instead of spaces in the name)
  5. 10. small chunks of rock that orbit the sun and crash into planets a lot
  6. 13. just a small asteroid
  7. 14. all objects have this, and the closer you are to the object, the more it effects you