Black Holes

3. jet powerful beams of plasma that are ejected from supermassive black holes
5. ripples in spacetime
8. Laser Interferometer Gravitational-Wave Observatory
10. What type of black hole is at the center of most large galaxies?
11. Black holes are mostly detected by their
12. of light 299,792,458 meters per second.
16. when the speed an object needs to travel to overcome the black hole's immense gravity and escape its event horizon
21. when an object gets stretched due to the gravitational pull of a black hole
23. Who first proposed the idea of black holes?

1. The density of the center of a black hole is…
2. A system built of billions of stars
4. The type of radiation that black holes emit due to quantum effects, causing them to shrink and evaporate over time
6. standard unit of mass in astronomy
7. created the general theory of relativity and predicted the existence of black holes
9. a type of black hole that falls between the mass of stellar black holes and supermassive black holes
12. the predicted central point of a black hole where infinite density and gravity occur
13. What type of black holes form when extremely massive stars collapse
14. The closer you get to a black hole time gets
15. The galaxy that contains our solar system
17. When a structure forms around a black hole made from orbiting gas, plasma, or dust.
18. smallest type of black holes
19. A. Super Massive Black hole at the center of the milky way
20. What constellation has the closest black hole in it from earth
22. the point of no return around a black hole