Across
- 3. a cloud of dust and gas where stars are born.
- 4. a small celestial body composed of ice, dust, and rock
- 5. a very bright explosion of a dying star.
- 6. a planet outside our solar system.
- 7. small, rocky, or metallic celestial bodies
- 8. a rapidly spinning neutron star.
Down
- 1. a giant, hot ball of glowing gas
- 2. a celestial body moving in an elliptical orbit around a star.
- 4. a term for the universe as an ordered whole.
- 5. a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.