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Q & A: gravity around black holes

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Most recent answer: 04/29/2015
Q:
Description of black holes state that "not even light (photons) escape the black hole" but gravitons do, otherwise black hole will be un-detectable--will not bend the nearby passing light. Hence, an even more bizare object may be hypothesized and named UN-DETECTABLEs which do not let even gravitons to escape. Yes?
- Mehran (age 64)
A:

See this thread: .

As the black hole forms it's already surrounded by a gravitational field. So the gravity is already out there, it doesn't have to escape anything.

Mike W.


(published on 04/29/2015)

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