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Results tagged with black-holes
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user 4578
A black hole is a region of spacetime from which nothing can escape. More formally, the future light cone of any observer within the black hole is completely contained in the black hole, and the black hole region is not within the past light cone of any observer that goes to spatial infinity in an infinite amount of time.
4
votes
How can a black hole emit X-rays?
Black holes are formed from collapsed supermassive stars. If a black hole ends up completely isolated then it will be very black. However, many stars are binaries. Moreover, within dense globular clus …
- 1,855
13
votes
Accepted
Where do the bipolar jets of black holes come from?
Black holes are small relative to their mass, matter that falls into a black hole will accelerate to very high speeds and then get crammed into a very tight volume. If even a relatively modest amount …
- 1,855
0
votes
What happens to light and mass in the center of a black hole?
Simply put: we don't know. From our perspective a black hole cuts off its interior from the rest of the Universe, the only aspects of a black hole that remain are mass, charge, and spin. In truth, eve …
- 1,855