Across
- 2. a large cloud of dust and gas
- 4. the most accepted and supported theory of the origin of the universe (two words, use a hyphen)
- 6. a star and all the planets and other objects that revolve around it (two words with a hyphen)
- 8. a layer of gases surround a planet, star, or moon
- 9. a chunk of rock from outer space that enters the Earth's atmosphere
- 12. an object in space that emits energy in the form of light and heat
- 13. a meteor that does not burn up in the earth's atmosphere and lands on the ground
- 14. A group of billions of stars, objects that orbit those stars, gas and dust
- 16. a hole in the ground caused by the impact of an object from space
- 17. the north star
Down
- 1. when a large supernova collapses and the force of gravity sucks everything in so strongly that not even light can escape
- 3. everything that exists, including galaxies
- 5. Gravity is the force of attraction between things that have mass
- 7. the path of an object around another object, for example the path of the Earth around the Sun
- 8. the study of objects in space and their properties
- 9. a large object that orbits a planet
- 10. to spin on an axis
- 11. A large, round body that revolves around a star.
- 12. the shape of the Milky Way Galaxy
- 15. a chunk of rock that orbits the sun
- 16. patterns of stars in the night sky