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Results tagged with black-holes
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user 185948
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.
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Can matter really fall through an event horizon?
The question, "can matter fall through an event horizon" is troubling because it raises a number of interrelated issues. To even begin to consider these issues, we must first consider whether a black …
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