Across
- 2. A bright active galactic nucleus
- 3. The natural force that makes things fall to the ground when you drop them
- 5. Everything that exists including the planets, stars, space
- 8. A powerful, bright stellar explosion
- 9. The line where the earth and sky appear to meet
- 10. To send out something (a smell, a sound, heat,etc).
- 11. A large group of stars and planets in outer space
Down
- 1. A very small piece
- 4. Connected with astronomy
- 6. The brightness that allows you to see things
- 7. The speed at which something moves
- 8. The outside or top part of something