The Universe

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