Across
- 3. Rotating neutron star.
- 6. Universe as a whole.
- 8. Obscuration of light.
- 10. Icy body with a tail.
- 11. Powerful distant object.
- 13. Rocky space object.
- 14. Small rock entering Earth’s atmosphere.
- 15. Path of a planet.
- 17. Our galaxy’s name.
- 18. Natural satellite.
Down
- 1. Celestial body orbiting a star.
- 2. Group of stars.
- 4. Explosive star death.
- 5. Cloud of gas and dust.
- 7. Pertaining to the Sun.
- 9. Unit of distance in space.
- 12. Luminous sphere of gas.
- 16. Gravitational abyss.