Across
- 1. The red planet
- 3. A large group of stars, gas, and dust
- 4. A large object that orbits a star
- 6. The path a planet follows around the sun
- 7. A natural satellite that orbits a planet
- 9. A space rock that burns in Earth’s atmosphere
- 11. The planet we live on
- 13. An icy object that orbits the sun and forms a tail
- 14. A tool used to observe objects in space
- 15. The star at the center of our solar system
Down
- 2. A vehicle used to travel in space
- 5. A scientist who studies space
- 8. The force that pulls objects toward Earth
- 10. A vehicle that is launched into space
- 12. A person who travels into space