Of course, if A "hung on" long enough before actually falling in, then A might see the future course of the universe. Bottom line: simply falling into a black hole won't give you a view of the entire future of the universe.
So the short answer to your question is no, someone falling into a black hole does not see the end of the universe.
So a black hole not only warps the space around it, but time too. “Time is going slower there by a factor of 1,000,” says Bakala. That means for every 1,000 days that pass on Earth – a little over three years – just a single day elapses on the black hole planet.
Black hole news: Standing on edge of black hole would cause 700 years to pass in 1 minute | Science | News | Express.co.uk.
While researchers have never found a wormhole in our universe, scientists often see wormholes described in the solutions to important physics equations. Most prominently, the solutions to the equations behind Einstein's theory of space-time and general relativity include wormholes.
It would take 10100 years, or a googol, for a supermassive black hole to fully disappear. “The entire age of the universe [is] a fraction of [the time] it would take,” says Priyamvada Natarajan, a researcher at Yale University who probes the nature of black holes. “As far as we're concerned, it is eternity.”
Near a black hole, the slowing of time is extreme. From the viewpoint of an observer outside the black hole, time stops. For example, an object falling into the hole would appear frozen in time at the edge of the hole. Inside a black hole is where the real mystery lies.
We might be the product of another, older universe. Call it our mother universe. The seed this mother universe forged inside a black hole may have had its big bounce 13.8 billion years ago, and even though our universe has been rapidly expanding ever since, we could still be hidden behind a black hole's event horizon.
In zero seconds, light travels zero meters. If time were stopped zero seconds would be passing, and thus the speed of light would be zero. In order for you to stop time, you would have to be traveling infinitely fast.
The idea (in Einstein's conception) is that space and time are parts of one entity, spacetime. The presence of mass distorts and warps this spacetime; normally the warping is minor, but around a very compact object such as a black hole or a neutron star the warping is dramatic and all sorts of funky effects happen.
It is possible for two black holes to collide. Once they come so close that they cannot escape each other's gravity, they will merge to become one bigger black hole. Such an event would be extremely violent. Even when simulating this event on powerful computers, we cannot fully understand it.
Nothing that falls into a black hole can come back out again -- at least not in its original form. But a black hole may lose some of its mass. Quantum theory says that "virtual pairs" of particles sometimes wink into existence from the fabric of space itself.
A star has survived a close encounter with a black hole, but the black hole has been able to sneak a second bite. A captured star has experienced multiple close encounters with a supermassive black hole in a distant galaxy — and possibly even survived having material ripped away by immense gravitational tidal forces.
Two black holes collided billions of years ago, sending ripples through time and space. This is only the second pair of black holes orbiting each other ahead of merging that researchers have found.
If the Earth had the misfortune to either encounter a black hole or simply have one get too close to it, our planet would be irrevocably destroyed. This is an extremely unlikely scenario, but we have all the time in the Universe to wait for it.
But creating a black hole with even a microscopic event horizon would require billions of times more energy than the LHC is able to produce. And even if it could produce such a black hole, that object would quickly lose energy and dissipate in the blink of an eye.
Astonishingly, the researchers have found that the number of black holes within the observable Universe (a sphere of diameter around 90 billion light-years) at present time is about 40 billion billion (i.e., about 40 x 1018, i.e. 4 followed by 19 zeros!)
Black holes, the gigantic remains of collapsed stars that are massive inescapable singularities of gravity, will eventually evaporate and fade into nothingness, something that Stephen Hawking predicted. But the same fate also awaits literally everything else, a recent study suggests.
The resulting uninhabitable black hole would have such a powerful gravitational pull that not even light could avoid it. So, should you then find yourself at the event horizon — the point at which light and matter can only pass inward, as proposed by the German astronomer Karl Schwarzschild — there is no escape.
The nearest known black hole is Gaia BH1, which was discovered in September 2022 by a team led by Kareem El-Badry. Gaia BH1 is 1,560 light-years away from Earth in the direction of the constellation Ophiuchus.
Since the Milky Way contains over 100 billion stats, our home galaxy must harbor some 100 million black holes. Though detecting black holes is a difficult task and estimates from NASA suggest there could be as many as 10 million to a billion stellar black holes in the Milky Way.
The term dark matter was coined in 1933 by Fritz Zwicky of the California Institute of Technology to describe the unseen matter that must dominate one feature of the universe—the Coma Galaxy Cluster.
Well, even though black holes are extreme in many ways, they don't have infinite mass—and it's mass that determines the force of their gravity. Some black holes—known as stellar black holes. —have about the amount of mass that very massive stars do.
Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe. In turn, all the black holes found so far in our universe—from the microscopic to the supermassive—may be doorways into alternate realities.