Across
- 3. Most of the universe is empty space called a _________
- 5. Areas in space where gravity pulls so much that light itself cannot get out.
- 8. The space between the stars
- 11. Some black holes are called ________
- 13. The largest black holes
- 15. 4.6 billion year old star, halfway through its main sequence
Down
- 1. Picture taken of Earth in 1990 by Voyager 1
- 2. A celestial body moving in an elliptical orbit around a star
- 4. A rotating disk of dust and gas that surrounds the core of a developing solar system.
- 6. Jupiter is made up of mostly trapped _________
- 7. A spiral galaxy approximately 2.5 million years from earth
- 9. The science that deals with the material universe beyond the earth’s atmosphere.
- 10. Earth's universe
- 12. One of the 4 gas giants
- 14. Giant ball of gas