What would an observer see if someone fell into a black hole?
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What would an observer see if someone fell into a black hole?
An observer watching someone falling into a black hole sees them slow down and redshift until they completely stop at the event horizon. The complete Schwarzschild geometry consists of a black hole and a white hole.
Will an observer falling into a black hole be able to witness all future events in the universe outside the black hole?
Bottom line: simply falling into a black hole won’t give you a view of the entire future of the universe. Black holes can exist without being part of the final big crunch, and matter can fall into black holes.
Could an object ever cross a black hole event horizon?
If a black hole exists the event horizon is in a different time reference to all other objects outside of the event horizon. Does that mean that nothing could ever cross a black hole event horizon as from our reference (and the rest of the universe) the object will always halt at the horizon?$\\endgroup$
What is a black hole and how does it work?
Einstein’s theory of general relativity first conceived a black hole as an object with a gravitational pull so powerful that anything — gas, dust, stars, planets, whole galaxies, even light — that crossed the event horizon would fall in and be forever trapped and ultimately crushed, never to escape.
Did Stephen Hawking just say that black holes don’t exist?
Those words come directly from Hawking’s latest paper, but they are contained within a larger point involving the mechanics of a black hole and its famous “event horizon.” (That’s the area thought to exist around a black hole from which nothing, not even light, can escape.) To be clear, Hawking was not claiming that black holes don’t exist.
What is the most distant black hole ever seen?
What is the most distant black hole ever seen? The most distant black hole ever detected is located in a galaxy about 13.1 billion light-years from Earth. (The age of the universe is currently estimated to be about 13.8 billion years, so this means this black hole existed about 690 million years after the Big Bang.)