Space vocabulary

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Across
  1. 6. Bright spot in the sky
  2. 7. Located outside our solar system
  3. 8. The earth's natural satellite, visible by reflected sunlight
  4. 9. All that exists
Down
  1. 1. A region of spacetime where gravity is so strong that nothing can escape from it
  2. 2. It is known as the red planet
  3. 3. Person travelling in space
  4. 4. Used to travel in space
  5. 5. Assembly of stars, gas and dust
  6. 7. The only planet that supports life