Across
- 2. A person who goes into space.
- 8. Aliens.
- 9. A place with many stars and planets (The Milky Way).
- 10. The closest planet to the sun.
- 12. The biggest planet.
- 15. A star that gives us power (light?)
- 16. Goes around.
- 17. This used to be a planet, but isn't anymore.
Down
- 1. The force that hold all of the planets together. (also pulls things towards earth)
- 3. A group of planets near a sun.
- 4. Everything.
- 5. Like a trip.
- 6. The red planet.
- 7. To look for something.
- 11. Something that can take people to space.
- 13. There are 8 of these around our sun.
- 14. A rock in space. Sometimes they hit the earth.