space words

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Across
  1. 1. is a very distant immensely bright object.
  2. 3. is the study of the universe.
  3. 4. is when an object spins.
  4. 5. study of the Earth using Physies.
  5. 6. the center of gravity of the Earth and Moon.
  6. 10. is our Galaxy.
Down
  1. 2. is a light in the atmosphere caused by a meteor falling towards the earth.
  2. 7. is negative particle which orbits an atom.
  3. 8. is when an object is traveling away from Earth macking the light form of the object stretched out macking it look redder.
  4. 9. is a group of stars,gas and dust held together by gravity.