Is it possible for a black hole to "eat" an entire galaxy? No. There is no way a black hole would eat an entire galaxy. The gravitational reach of supermassive black holes contained in the middle of galaxies is large, but not nearly large enough for eating the whole galaxy.
Despite their abundance, there is no reason to panic: black holes will not devour Earth nor the Universe. It is incredibly unlikely that Earth would ever fall into a black hole. This is because, at a distance, their gravitational pull is no more compelling than a star of the same mass.
Anything that enters the event horizon cannot escape the black hole's gravity. So objects that do not keep a safe distance get swallowed. Despite their reputation, black holes will not actually suck in objects from large distances. A black hole can only capture objects that come very close to it.
Unlikely. Recent developments that show our universe is expanding at an ever-increasing rate. The cause of the expansion, called dark energy, is not understood, but it appears that the universe is destined to undergo a slow and cold death.
Planets would be slung away into space by gravitational forces, or they would be ripped apart by the strong tidal forces of the black hole. But thankfully, the chances of this happening are very slim.
What are the chances of Earth being consumed by a black hole? Experts who spoke to Newsweek said there is practically zero chance of the Earth ever colliding with a black hole before it is swallowed by the sun in around five billion years' time.
Theoretically if there was no spin or outward pressure to take into consideration, Heile said, it would take about 10 to 15 minutes for the entire Earth to fall into the black hole.
In about 100 trillion years, the last light will go out. The bad news is that the universe is going to die a slow, aching, miserable death. The good news is that we won't be around to see it.
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.
According to contemporary cosmologists' best guesses, the universe will continue to last for an extremely long time, something over a googolplex years. A googolplex is a very large number — 1010100. Some estimates are even larger.
There are no classes of object in our Universe more extreme than black holes. With so much mass present in such a tiny volume of space, they create a region around them where the curvature of space is so strong that nothing — not even light — can escape from its gravity once a certain boundary is crossed.
Maybe a black hole leads to a white hole
Unlike a black hole, a white hole will allow light and matter to leave, but light and matter will not be able to enter. Scientists have continued to explore the potential connection between black and white holes.
A black hole is an extremely massive concentration of matter, created when the largest stars collapse at the end of their lives. Astronomers theorize that a point with infinite density—called a singularity—lies at the center of black holes.
After 1043 years, black holes will dominate the universe. They will slowly evaporate via Hawking radiation. A black hole with a mass of around 1 M ☉ will vanish in around 2×1064 years. As the lifetime of a black hole is proportional to the cube of its mass, more massive black holes take longer to decay.
The collision corresponds to the Big Crunch, then a Big Bang. The matter and radiation around us today are quantum fluctuations from before the branes. After several billion years, the universe has reached its modern state, and it will start contracting in another several billion years.
Theorists say it's technically possible, but it would be a weird place to live. Supermassive black holes have a reputation for consuming everything in their path, from gas clouds to entire solar systems.
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.
No human has ever been inside of a black hole. Humans are not yet capable of interstellar travel. Even if a human was able to travel to a black hole, he or she would not be able to survive entering it. Black holes condense all the matter that falls into it into one point called a quantum singularity.
A new model suggests how gravitational waves created by the collision between black holes spread and interact within the fabric of space-time. When black holes collide and merge to form even more massive black holes, this violent process sends ripples surging through the very fabric of space.
By the year 1 trillion, the accelerating universe will have infinitely stretched the light from all external galaxies - assuming dark energy truly is Einstein's cosmological constant and not an unstable field that winds up destroying the universe.
In the Discursive Condition, then, time is finite because it can exist only as a dimension of events and is not an infinite and neutral envelope for them.
Over timescales of 100 trillion years, it will fade away, eventually becoming a black dwarf. Any surviving planets in orbit around it must survive gravitational encounters in order to remain. If they can last long enough, eventually gravitational radiation will cause those worlds to be devoured by the stellar remnant.
After just a few minutes more — 21 to 22 minutes total — the entire mass of the Earth would have collapsed into a black hole just 1.75 centimeters (0.69”) in diameter: the inevitable result of an Earth's mass worth of material collapsing into a black hole.
Astronomers have discovered the closest black hole to Earth, the first unambiguous detection of a dormant stellar-mass black hole in the Milky Way. Its close proximity to Earth, a mere 1,600 light-years away, offers an intriguing target of study to advance understanding of the evolution of binary systems.
In astrophysics, spaghettification (sometimes referred to as the noodle effect) is the vertical stretching and horizontal compression of objects into long thin shapes (rather like spaghetti) in a very strong, non-homogeneous gravitational field. It is caused by extreme tidal forces.