One hour for a black hole observer would equate to 100,000,000 years for a person on Earth. Therefore one minute in a black hole would be roughly 1,700,000 years.
Even if we see the universe from a point very close to the apparent event horizon, the time dilates to such an extent that the time of the locations away from tne universe will be much faster (say 1 second for the observer near blak hole will be 100000 years for an observer on earth).
As you get closer to a black hole, the flow of time slows down, compared to flow of time far from the hole. (According to Einstein's theory, any massive body, including the Earth, produces this effect.
The singularity at the center of a black hole is the ultimate no man's land: a place where matter is compressed down to an infinitely tiny point, and all conceptions of time and space completely break down.
The short answer, unfortunately, is no. White holes are really just something scientists have imagined — they could exist, but we've never seen one, or even seen clues that one may exist. For now, they are an idea. To put it simply, you can imagine a white hole as being a black hole in reverse.
Eventually, as the universe ages, the material around a black hole will run out and its doomsday clock will start ticking. As a black hole evaporates, it slowly shrinks and, as it loses mass, the rate of particles escaping also increases until all the remaining energy escapes at once.
The Black Hole Era, which is predicted to last from about 1040 to 10100 (10 duodecillion to 1 googol) years after the Big Bang, spans an unimaginably long stretch of time, even for astronomical timescales. Imagine a universe with no bright stars, no planets, and no life whatsoever — that's the Black Hole Era.
Even if you were somehow able to break the laws of physics and travel faster than the speed of light, you still couldn't get out of a black hole. The space within black holes is curved in on itself, and so there is no direction you can travel in to get out of the black hole.
Stellar black holes are very cold: they have a temperature of nearly absolute zero – which is zero Kelvin, or −273.15 degrees Celsius.
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.
Eventually, the entire contents of the universe will be crushed together into an impossibly tiny space – a singularity, like a reverse Big Bang. Different scientists give different estimates of when this contraction phase might begin. It could be billions of years away yet.
1 second in space is equal to 1 second in earth. Space time doesn't move any faster than earth time so we use earth time for all of outer space.
In short, black holes are massive pits of gravity that bend space-time because of their incredibly dense centers, or singularities..
On basis of above explanation, we can conclude that the word FOUR is the „black hole word‟ in English and four fundamentals signs (+ , - , × and ÷) in Mathematics are „ the black hole signs‟ in Maths.
But not all black holes are created equal. Some are larger than others and, while they all absorb the matter around them, some grow faster. Led by researchers at the Australian National University (ANU), an international team has found the fastest-growing black hole of the last 9 billion years.
Our Universe appears to be expanding and cooling, having originated some 13.8 billion years ago in a hot Big Bang. However, it's plausible that what we see from inside our Universe is simply the result of being inside a black hole that formed from some parent Universe.
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!)
Since nothing can escape from the gravitational force of a black hole, it was long thought that black holes are impossible to destroy. But we now know that black holes actually evaporate, slowly returning their energy to the Universe.
Over time they shrink down to nothing and simply pop away in a flash of energy. It's not exactly fast. A good size black hole — say, a few times more massive than the sun — will take about 10^100 years to eventually evaporate through this process, known as Hawking Radiation.
Black holes are dark, dense regions in space where the pull of gravity is so strong that nothing can escape. Not even light can get out of these regions. That is why we cannot see black holes—they are invisible to our eyes. Because nothing can get out of black holes, physicists struggle understanding these objects.
Wormholes are shortcuts in spacetime, popular with science fiction authors and movie directors. They've never been seen, but according to Einstein's general theory of relativity, they might exist.
Black holes themselves cannot be seen: their gravitational fields are so strong that nothing can escape them—including light. That is why their edges are called event horizons, because, much like with normal horizons, seeing beyond them is impossible.
In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.