How Much Do You Know About Black Holes

 


What would happen if you fell into one? Assume you were exploring space one day in search of a new planet for humans to inhabit but came across a black hole and decided, Why not check it out?  

And here's what would happen if you fell into a black hole. Despite being "black" and a hole, A black hole is not a dark, empty space. In his theory of relativity, Einstein predicted how black holes are formed. 


When a massive star dies, it leaves a smaller, remnant core behind. If the core's mass is at least three times bigger than the mass of our sun, Gravity overwhelms all other forces and turns the core into a black hole. But don't let its name fool you, but rather a huge amount of matter packed into a very small space. 



 Think of the sun, with its gravitational field 28 times stronger than Earth's. If you were to walk on the sun, You'd be 28 times heavier than you are on Earth. Now imagine squeezing four oranges into something that is just 15 miles (24 km) in diameter, the distance you can cover in a 30-minute drive. What would the gravity be like there? 


A black hole's gravity is so strong that even light can't get out. That's why you'll never see one, but you can detect it from the gamma-ray bursts that the hole emits. These bursts, discovered by Stephen Hawking, now carry his name. Stephen Hawking himself believed that black holes can be passages to another universe. So if you were to fall into one, would you find yourself in an alternate dimension? 


Every black hole has an event horizon, the point at which the gravitational pull becomes so strong that you can't escape from it. If you happen to be outside that range, you'd see that the stars are twisted around a perfect circle of darkness. As you start being pulled toward a black hole, you'd be moving faster and faster, accelerated by the force of gravity. That's the first piece of bad news for you, brave space traveler. 


The gravitational force of a black hole is very, very strong. If you fell feet-first, your legs would be feeling a stronger gravitational pull than your head. Your body would be stretched apart. The most common black holes are called "stellar". They can stretch to about 9 miles (15 km) across and be as heavy as 20 suns. If you happened to be pulled towards a stellar black hole, you'd be ripped apart before you even got to the event horizon. So make sure to choose a supermassive one. The one that is a million times heavier than our sun. In this case, your body would remain unharmed. As you cross the event horizon, as gravity would be pulling both your feet and your head with almost the same strength and if you're wondering where to find one, you don't have to look too far. There's one right at the center of our Milky Way galaxy


Luckily, it's 165 quadrillion miles (265 quadrillion km) away from us and will be sucking neither the sun nor In the planets. But don't pack your suitcase just yet, traversing in the event of the horizon is just the beginning of the challenge. There's a gravitational singularity at the center of the black hole where density becomes infinite. You'd be squashed into that center and become one with the black hole. You wouldn't be able to tell anyone about your experience. However, a person observing you outside the event horizon would see a very different picture. As you were falling into a black hole, they'd see you slowing down, getting dimmer and redder. In the end, you'd just freeze, never crossing the event horizon. This is because space and time in a black hole swap roles. On the event horizon, time comes to a stand till. While space, on the other hand, moves forward. 


You wouldn't be able to turn around and escape the black hole. Any more than you can travel back in time. Even when the black hole eventually died, all the particles it had absorbed (including those from your body), It would be impossible to tell whether those particles were yours. Stephen Hawking, however, found a way in which your body's information would not be lost. He theorized that there are alternate universes with different histories. This means that in one reality, you fell into a black hole. In the second one, there was no black hole. It's impossible to be certain from outside the event horizon. Whether there's a black hole or not until you fall in there. If you crossed the event horizon and there was a black hole. But if you happened to be in a reality where the black hole didn't exist, you'd still be alive. Just in a different universe. There would be no way for you to get back to ours. Would you dare explore the possibility? Are you drawn to black holes and the universe?  

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