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Unformatted text preview: spectrum. Scientist were able to measure the disc by recording the amount of time it took for an eclipsing cloud to pass by. The believe that the diameter is about seven times the distance between the sun and the earth making this disc alone about half the size of our own solar system. Because of the eclipsing cloud they were able to measure much closer to the edge of a black hole than ever before. Material this close will most likely cross the event horizon and disappear in about a hundred years, not long at all in cosmic time....
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- Spring '08
- Astronomy, Black hole, massive black hole