Black Holes

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Across
  1. 3. orbit 3/2 the radius of the black hole where light can orbit
  2. 5. singularity at the center of a black hole
  3. 6. a wormhole connecting a black hole to a white hole, impossible to cross
  4. 10. two of these colliding often forms a black hole
  5. 14. paradox relating to black holes radiating away only information about the spin, charge, and mass of the black hole, violating conservation of energy
  6. 19. singularity that comes from stuff that fell into the black hole before you
  7. 20. upper mass limit of a neutron star before it collapses into a black hole
  8. 21. “time loops” that could exist in spinning black holes
  9. 24. radiation emitted by a black hole
  10. 25. causes the accretion disk rotating towards you to appear brighter and bluer
  11. 27. region outside a rotating black hole’s event horizon
  12. 28. violent stellar explosion that results in a black hole’s creation
  13. 33. a region for which it’s impossible for matter to orbit a black hole
  14. 35. large black holes often in the center of a galaxy
  15. 37. another name for the central singularity of a Kerr black hole
  16. 38. the milky way’s central black hole
  17. 39. circular ring created by light being warped by a massive body in front of it
  18. 40. singularity coming from all the stuff that fell into the black hole after you
  19. 41. extreme stretching caused by a black hole’s tidal forces
  20. 42. a supermassive black hole with a bright accretion disk and jets
  21. 43. an effect in which the light from an object close to a black hole will appear redder
  22. 44. a black hole’s effect on time as predicted by general relativity
  23. 45. radius at which an object will collapse into a black hole
  24. 46. a point of infinite density
Down
  1. 1. a black hole created via a star exploding in a supernova
  2. 2. paradox paradox where an attempt to resolve entanglement problems with hawking radiation, violating the equivalence principal
  3. 4. spinning, electrically charged black hole
  4. 7. non-spinning, uncharged black hole
  5. 8. an uncommon type of black hole larger than stellar mass and smaller than supermassive
  6. 9. the boundary between the inside and outside of a black hole
  7. 11. secondary horizon inside rotating black holes
  8. 12. theorem that says that black holes have only 3 properties: spin, charge, and mass
  9. 13. jet of plasma coming at nearly the speed of light from a supermassive black hole
  10. 15. the region in the center of a galaxy with high levels of radiation mainly from a central black hole
  11. 16. disk of hot gas orbiting a black hole
  12. 17. closest orbit in which in object could orbit a black hole without falling in or flying out
  13. 18. theory that the observable universe is inside a black hole
  14. 22. forces caused by the difference in the acceleration due to gravity of the side of an object close to a massive body relative to the side farthest
  15. 23. spinning, uncharged black hole
  16. 26. when a black hole spins, it drags spacetime with it
  17. 29. the warping effect of a massive body, such as a black hole, in front of a light source
  18. 30. non-spinning, electrically charged black hole
  19. 31. maximum brightness a black hole’s accretion disk can get
  20. 32. black holes explained exclusively via quantum effects in string theory
  21. 33. a means by which energy could be extracted from a black hole
  22. 34. theory that predicts the existence of black holes
  23. 36. a hypothetical small type of black hole created in the early universe