Across
- 5. force that attracts something to the center of the Earth
- 6. Center of a black hole
- 7. having a mass greater than a million suns combined
- 8. a very dense star made up of neutrons
- 9. Spiral of gas that surronds a black hole
- 12. The speed an object must go to escape the gravitational pull of another object
- 13. if you want to escape a blackhole, you must travel faster than the....
- 14. Huge space that contains all the matter in existence
Down
- 1. the distance that surronds a blackhole where nothing can escape
- 2. Two objects that orbit around each other
- 3. A supermassive black hole feeding on gas from nearby galaxies
- 4. a unit of distance of about 3.26 light years
- 5. bright flashes of gamma rays lasting for just a few seconds
- 10. An explosion of a star
- 11. the shrinking of a star because of its own gravity pull