Will black holes one day devour us all? If we happen to come across a black hole, you'd better fasten your seatbelt, the process can be really exciting. Just 3,000 light-years from Earth, there is a visible black hole to the naked eye, and fortunately we are some safe distance from this star's black hole and many other similar black holes.
As far as we know, there are about 100 million such galaxies in our Milky Way galaxy, and they are the remnants of supernovae that collapse on their own when stars 10 to 20 times larger than our sun collapse. Stellar black holes are fairly common, and supermassive black holes are the size of our entire solar system, with masses of more than a million suns combined, one of which is called Sagittarius A*, located right in the middle of our galaxy.
In a way, a 1 mm (1/25 inch) sized black hole, due to its incredible density and extreme gravity, could destroy us if it's close enough to Earth, and our survival depends on whether we're beyond the "event horizon," which you can consider to be the black hole's point of no return, and anything beyond that point must escape at speeds faster than the speed of light. If The Earth is close enough to the black hole, the nearest side will begin to extend toward it, as if sucked in, and our atmosphere will begin to be sucked dry by the vacuum, and with it most of the Earth torn apart.
The process by which the Earth is swallowed up by a black hole
If the Earth falls into the orbit of a black hole, we will experience tidal heating, and the strong uneven gravitational pull on the Earth will constantly deform the Earth, which will create huge internal friction, heating the core to a catastrophic degree, and it may trigger earthquakes, volcanic eruptions and deadly tsunamis. Eventually, the Earth will begin to stretch in a process known as "and," rather than in a delicious, cheese-like way. Assuming you're a superhero who decides to go head-to-head with a black hole, your arms will be closer than your feet, causing your body to stretch vertically, becoming more and more compressed, just hoping that your superpowers are elastic.
For an average-sized stellar black hole, space splitting could occur hundreds of kilometers from the "event horizon." But for a supermassive black hole, physicists believe that because of its size, this will happen within the event horizon.
Eventually, anything that enters a black hole, no matter how big, will be torn into a string of separate atoms. Whether it's a person, a planet, or a star, anything that crosses it will happen. Unfortunately, our entire solar system is doomed to failure, and the careful balance of the sun and many of our planets will eventually collapse.
To make matters worse, our asteroid belt would be sucked into us, about 200 of the 552,894 asteroids we know of that are more than 100 kilometers (62 miles) in diameter. If an asteroid hits us and we're dead before we turn into spaghetti, it's hard to say which fate would be worse.
All matter in the solar system would join the accretion disk around the black hole. When matter is sucked into a black hole, it produces a lot of radiation, so even if we survive all the asteroids, we could die of radiation.
Astronomers have found rare orbiting binary stars orbiting two stars, and while black holes and our sun may have this possibility, extreme tidal forces are likely to render our planet uninhabitable. Worse, we could end up being kicked out of orbit or swallowed up by the sun or black hole. Sorry, but we still can't win here.
But maybe we can find a way to protect ourselves, like flying a super-enhanced version of the space shuttle that somehow crosses the "event horizon," but we may enter an unfamiliar era where physics as we know it will change, like gravity, the speed of light, and even how atoms combine and react, which may be completely different. And then we don't know what's going to happen, we can't get any information from the black hole, will we be pulled into another dimension? Finally into a parallel universe? Or maybe we're already in a black hole, however, what we do know is that this is another hypothetical story.