Slam

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Across
  1. 3. A person trained for space exploration
  2. 6. A luminous point in the sky
  3. 7. A region with gravitational pull so strong not even light can escape
  4. 9. A device used to observe distant objects in space
  5. 10. A system of stars and planets
Down
  1. 1. The path of a celestial body around another
  2. 2. Everything that exists
  3. 4. The universe as an orderly system
  4. 5. A celestial body orbiting a star
  5. 8. A cloud of gas and dust in space