Across
- 4. a chunk of rock or dust in space
- 6. the system consisting of the sun and the planets and other objects that revolve around it
- 8. the blocking of sunlight to earth that occurs when the moon is directly between the sun and earth.
- 9. the path of an object as it revolves around another object in space
- 10. the small, dense remain of a high-mass star after a supernova
- 11. an object that orbits the sun and is spherical, but has no cleared the area of its orbit
- 13. an object whose gravity is so strong that nothing, not even light, can escape
- 15. an object that orbits a star
Down
- 1. one of the different apparent shapes of the moon as seen from Earth.
- 2. all of space and everything in it
- 3. the periodic rise and fall of the level of water in the ocean
- 5. the name often given to the four inner planets
- 7. a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere and hits earth's surface
- 12. a huge group of single stars
- 14. a ball of hot gas
