Shanti

3. Celestial bodies that interact with space that create depressions
5. material falling into black holes that collects into a band of hot gas and dust
6. two stars that orbit each other move in generally predictable ways because of the gravitational attraction between the stars
7. a gradual accumulation of small objects to form a larger object due to their mutual gravitational attraction.
9. grouping of billions of stars, gas, and dust, together by their collective gravity
11. speed at which light travels, 300,000 kilometers per second
14. an object with enormous mass but infinitely small size would create a bottomless pit
15. We have a ___________ in our MilkyWay galaxy that is sometimes called Sagittario
16. bursts gamma rays from space, possibly triggered by the birth of black holes.
17. predicts that black holes exist
18. most scientists agree that ________ can’t really exist
20. difference in elapsed time between two locations that is either caused by different velocities or by gravitational fields

1. Albert Einsteins___________ effects on gravity, predicted black holes and singularities
2. physical size of black holes that is measured by this special unit
4. Einstein’s theories infer that tubes, or tunnels, might exist within the strange world of black holes (using its First name)
8. German Astronomer theorized formation of black holes comes from collapse of stars
10. a star at least eight times the mass of our Sun, explodes at the end of its life in a blaze of glory called a supernova.
12. minimum velocity needed to escape an object's gravitational pull
13. the outer boundary of a black hole
19. point with infinite density