Across
- 4. one of two ice giants in outer solar system
- 5. an object that orbits a planet or something else that is not a star
- 6. a rock that falls to earth from space
- 9. a small rocky object that orbit the sun
Down
- 1. a group of stars that appears to form a pattern
- 2. the star at the center of the solar system
- 3. a small icy object that orbits the sun and has a long tail of gas
- 7. an almost perfect vacuum nearly void of matter and with extremely low pressure
- 8. is the only place in the known universe confirmed to host life