Space!!!!!

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Across
  1. 4. a cavity on the surface of a planet
  2. 7. a person who explores space
  3. 10. An object placed intentionally in orbit
  4. 13. Group of stars
  5. 14. interstellar cloud of dust and gas
Down
  1. 1. a place where 15 down are typically located
  2. 2. Cosmic feature that absorbs all light
  3. 3. Collection of stars that orbit a central point
  4. 5. Small icy body
  5. 6. Path a planet or cosmic body follows
  6. 8. Tool to view stars and space
  7. 9. The study of space and stars
  8. 11. when one heavenly body such as a moon or planet moves into the shadow of another heavenly body
  9. 12. Minor planets