Across
- 3. a space with no matter
- 8. an event where one celestial body moves into the shadow of another
- 10. an imaginary line a planet spins around
- 11. an instrument used to make distant objects in space appear closer
- 12. a the path one object in space takes around another
- 13. a giant cloud of gas and dust in space, often where new stars are born
- 15. the layer of gases surrounding a planet or moon
- 16. a piece of meteor that survives the atmosphere and hits Earth'ssurface
- 17. a natural satellite that orbits the planet
Down
- 1. a large object that orbits a star
- 2. a body made of ice and rock that develops a glowing tail near the sun
- 4. everything that exists
- 5. a huge collection of stars, dust and gas held together by gravity
- 6. an object that orbits another object
- 7. a force that pulls objects toward each other
- 9. a streak of light made when a space rock burns up entering Earth's surface
- 14. a small rocky body that orbits the Sun