Across
- 1. A vehicle used to travel from Earth into space.
- 4. A huge ball of hot, glowing gas in space.
- 5. Two brothers or sisters who are born at the same time.
- 7. The huge area beyond Earth where stars and planets are found.
- 9. The force that pulls objects toward Earth or other planets.
- 10. The object that travels around Earth and shines in the night sky.
- 11. The path an object follows as it travels around a planet or star.
Down
- 2. The planet where we live.
- 3. A large object that travels around a star.
- 6. The U.S. organization that explores and studies space.
- 8. A person who is trained to travel and work in space.