Across
- 2. The explosion of a star that makes it as bright as a whole galaxy
- 4. The curved path that a planet, satellite
- 5. A collection of thousands to billions of stars held together by gravity
- 7. The outer atmosphere of a star.
- 10. The star in the center of our solar system
- 11. An icy rock that lets off gas and dust, which may form tails when it is flying close to a sun
- 12. A place in space where matter and light cannot escape if they fall in
- 13. Our galaxy
- 14. A large body in outer space that circles around the sun or another star
Down
- 1. A force that pulls matter together
- 3. A planet that freely floats between stars or one that orbits a star outside our solar system
- 6. A natural object that travels around a bigger natural object
- 8. A vehicle used for traveling in space
- 9. Rocks floating around in space