Across
- 4. supreme god of Romans; counterpart of Greek Zeus
- 5. small extraterrestrial body that hits the earth's atmosphere
- 6. the god of the underworld in ancient mythology
- 9. a small frozen mass that travels around the sun
- 10. a burst of light used to communicate or illuminate
- 11. the distance that light travels in a vacuum in 1 year
- 12. a collection of star systems
- 14. an immense cloud of gas and dust in interstellar space
- 15. a region of space resulting from the collapse of a star
Down
- 1. a mass that enters earth's atmosphere, becoming incandescent
- 2. pertaining to or characteristic of the universe
- 3. any location outside the Earth's atmosphere
- 7. of or relating to or caused by gravitation
- 8. a configuration of stars as seen from the earth
- 13. a small celestial body composed of rock and metal