Crossword

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Across
  1. 1. travel out of earth's orbit to explore
  2. 8. telesope that uses mirrors
  3. 10. galaxy where we live
Down
  1. 2. uses radio waves to see space
  2. 3. made up of planets, moons, asteroids, and comets
  3. 4. the amount of distance light can travel in one earth year
  4. 5. has a terrstrial or gaseous surface
  5. 6. made of gas, dust and billions of stars
  6. 7. big arches of energy
  7. 9. star at the center of our solar system