Jordyn Forbes

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Across
  1. 3. a burst of gamma rays from space, possibly triggered by the birth of black holes.
  2. 6. the outside part of a black hole where the escape velocity is more than the speed of light.
  3. 10. where stars, planets,blackholes, and more.
  4. 11. the velocity needed to escape the gravitational pull from the surface of the body of mass.
  5. 16. a flattened disk of matter orbiting around an object. friction causes spirals.
  6. 18. the center of a black hole, an infinitely dense remnant of a massive star’s core collapse.
  7. 19. the theory of how the universe was created.
  8. 20. the attraction force between two bodies of mass.
  9. 21. the galaxy that we live in
Down
  1. 1. the slowing of the flow of time, which may be observed for objects that approach the event horizon of a black hole.
  2. 2. the middle of a star begins to fuse and its size fluctuates until an outward force balances it.
  3. 4. the speed at which light travels, 300,000 kilometers per second (186,000 miles per second).
  4. 5. what most stars in our galaxy are, they are the average temp and size.
  5. 7. the end stage of a star when it collapses on itself becomes so dense light cant escape.
  6. 8. the most powerful form of electromagnetic radiation, with the shortest wavelengths.
  7. 9. the distance light travels in one year, approximately 9.46 trillion meters (5.88 trillion miles).
  8. 12. the radius of an object with a given mass at which the escape velocity equals the speed of light.It is the radius corresponding to the event horizon of a black hole
  9. 13. when high mass stars create supernovas then condense down to tiny stars called
  10. 14. theoretical “tubes” in space-time, which could be entered from a black hole, and were predicted based on the simplest solution of Einstein’s equations.
  11. 15. accumulation of small objects to form a larger object because of their attraction of gravity.
  12. 17. an explosion caused by the collapse of the core of a massive star.