Across
- 3. Neutron star with an extremely powerful magnetic field
- 8. Dark cloud of dust shaped like a horse's head
- 10. Expanding remains of a star that exploded in a supernova
- 11. Planet that drifts through space without orbiting a star
- 13. Boundary around a black hole beyond which nothing can return
- 14. Extremely dense stellar remnant made mostly of neutrons
- 15. Huge region of space containing very few galaxies
Down
- 1. Extremely bright object powered by a supermassive black hole
- 2. Object formed when a massive star collapses and gravity becomes so strong that light cannot escape
- 4. Giant columns of gas and dust where new stars are forming
- 5. Rapidly spinning neutron star that emits beams of energy
- 6. Massive stellar explosion marking the death of a star
- 7. Mysterious region of space pulling galaxies toward it
- 9. Planet that orbits a star outside our solar system
- 12. Massive cloud of icy objects surrounding the solar system