Across
- 3. abyss
- 5. center of a black hole
- 7. supposedly discovered with an apple
- 8. star explosion
- 9. almost the speed of light
- 12. rapidly rotating neutron star
- 14. emission of energy as waves
- 15. minimum speed to leave gravity
- 17. a concept in a 4D continuum
- 19. rotating disk of matter
Down
- 1. remnant star after supernova
- 2. most energetic form of light
- 4. bigger than a supernova
- 5. mass of the sun
- 6. state of matter
- 10. extremely magnetic neutron star
- 11. center of a star
- 13. occurs in low mass x-ray binary systems
- 16. edge of black hole
- 18. made of mass