According to the definition of the US National Aeronautics and Space Administration (NASA), a black hole is a region of space where matter becomes so dense that its gravitational pull prevents anything from escaping, including light.
Time is defined as almost stopping at the edge of a black hole, and its center may conceal a point of infinitely small volume and density, where all laws of physics are broken.
The likelihood of Earth being swallowed by a black hole is extremely low unless a transient black hole is present within the Solar System.
The possibility of Earth being swallowed by a black hole.
Possessing terrifying power capable of devouring anything unfortunate enough to enter the space they exist in and travel through, it's no surprise that these cosmic objects have been the subject of science fiction ever since black holes were defined by scientists in 1964.
Despite the fact that black holes are dangerous objects, there is no reason to fear that Earth or the entire Solar System will be swallowed by a supermassive black hole. The possibility of Earth being swallowed by a single black hole is also extremely unlikely.
According to scientists, this is due to the fact that the distance between black holes is almost the same as that of Earth, and on the other hand, the gravitational force of a black hole cannot swallow a star of the same mass as itself.
If we replaced the Sun with a black hole of the same mass, Earth and the remaining planets would continue to orbit the black hole as they do now. There would be no noticeable change in the gravitational forces acting on the planets in the Solar System.
However, if our Sun were replaced by a black hole, our solar system would become dark and cold.
The only way Earth could be swallowed by a black hole is if our planet were to happen to stray across the event horizon of a rogue black hole.
Depending on the size of the black hole, matter on Earth can be stretched out into shapes resembling spaghetti noodles.
What would happen if Earth fell into a black hole?
In a scenario where Earth is swallowed by a black hole, the consequences would be catastrophic, says Gaurav Khanna, a black hole physicist at the University of Rhode Island.
"When Earth gets close to a black hole, time slows down. And depending on the size of the black hole, matter can be stretched out into shapes resembling spaghetti," Khanna said.
Even if the planet survives this "pasta" process, Earth would be bound by a small, dense singularity where it would be incinerated by the pressure and temperature of an immeasurable gravitational force.
Therefore, we can rule out the possibility that a black hole swallowed Earth at some point in its history. In other words, our planet would have been wiped out in an instant.
However, there is another scenario: that Earth will survive after being swallowed by a black hole.
"A black hole looks very much like a reverse Big Bang. While a black hole collapses at a very small point with a high density of matter, the Big Bang also erupted from such a point," Khanna analyzed.
One theory suggests that the first Big Bang was the singularity of a black hole in a larger parent universe. The center of the object became denser, compressed and compressed, “until somehow it exploded and a nascent universe was formed inside the black hole.”
This theory, known as Schwarzschild cosmology, also suggests that our universe is currently expanding inside a black hole that is part of a "mother universe".
This leads to another hypothesis: that Earth may exist inside a black hole after our planet was swallowed.
Dr. Samir Mathur of Ohio University (USA) suggests that black holes don't destroy everything they suck in. They even create a "virtual image" of the object and continue to exist.
The Earth could exist on a virtual surface inside a black hole. This intriguing hypothesis suggests that black holes are essentially replicas of the universe—this physical object having a different surface.
Things aren't sucked into the depths of a black hole; instead, they fall onto some surface. Look at anti-counterfeiting stamps; they have a recessed surface.
If this were to happen, Earth would likely be safely situated on a surface within another dimension. However, this surface would have to meet all the necessary conditions to represent a three-dimensional object.
Tra Khanh (Source: BBC)
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