Across
- 3. piece of rock or metal that burns very brightly
- 8. a place or building equipped and used for making observations
- 9. someone who travels in space
- 10. the name of our planet
Down
- 1. an optical instrument that makes far away objects look closer
- 2. our galaxy
- 4. a vehicle used for space travel
- 5. a scientist who studies the stars, planets, and other natural objects in space
- 6. moon, planet or machine that orbits a planet or star
- 7. a ball of mostly ice that moves around in outer space