Black holes

1. needed for a non-propelled object to escape gravity from a primary body
3. A disk-shaped accumulation of gas and dust that surrounds a black hole and is heated by its gravitational energy, making it glow with X-rays.
5. A region around a black hole where photons (particles of light) can orbit the black hole in stable, nearly circular paths. This region is located just outside the event horizon.
6. The boundary around a black hole beyond which nothing, not even light, can escape its gravitational pull.
9. theoretical physicist
12. Radiation emitted by a black hole due to quantum mechanical effects near the event horizon, causing the black hole to slowly lose mass over time.
13. A rotating black hole that exhibits frame-dragging, a phenomenon where spacetime is dragged along with the black hole's rotation.
14. the force that attracts things that have mass
15. A black hole with a mass equivalent to millions or billions of suns, found at the centers of most galaxies, including our Milky Way.

2. stretching of an object into spaghetti like strands
4. The bending of light around a black hole due to its strong gravitational field, which can distort and magnify the images of objects behind it.
7. A point of infinite density and zero volume at the center of a black hole, where the laws of physics as we know them break down.
8. The distance from the center of a non-rotating black hole at which the escape velocity equals the speed of light, defining the size of the event horizon.
10. the coming together of matter under gravity
11. measurement of distance equal to 3,260 light years