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