The Universe

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Across
  1. 3. The largest planet in our Solar System
  2. 6. Groups of stars that form patterns in the night sky
  3. 8. Piece of rocky debris that travels in outer Space
  4. 9. Clouds of dust and gas in space
  5. 10. An event that caused the birth of the Universe
Down
  1. 1. Accounts for most of the mass in the Universe
  2. 2. The passage of a meteoroid as a noticeable streak of light
  3. 4. Large balls of hot gas
  4. 5. Term used to describe energy from our star, the sun
  5. 7. Colour of stars with the hottest surface temperature