What would you see if you were sent to travel near a black hole?

What would you see if you were sent to travel near a black hole? Black holes are the most horrible existence in the universe. They are so greedy that they can swallow anything, even the light that passes through here will be swallowed up. Dare you go now?

There are countless black holes in the universe, but in fact all black holes are different. Some black holes are relatively small, and their mass is only 10 to 20 times that of our sun. Black holes are also the most, and there are millions in our galaxy alone. There is also a super black hole, which is very massive and can be millions of times that of the sun. However, such black holes are usually born only in the center of each galaxy, and our galaxy also has one. Although we know that there are countless black holes in the universe, so far there is a photo of a black hole among us, which takes a photo of the photon orbit around the super black hole in messier 87 galaxy. The whole earth has been observed continuously for five days with eight huge astronomical telescopes, and it took another two years to combine all the signals to form the photo we see now.

But now you don't need it, because you will travel near the black hole and you will see the most mysterious black hole with your own eyes. The nearest black hole is unicorn V6 16, which is less than 3000 light years away. It is a small black hole about 1 1 times the sun, but it is not easy for you to get here, even if you fly here at the speed of light, it will cost 3000 yuan. When you are a few light years away from it, you will feel the influence from the black hole. At this time, you'd better wear sunglasses. Although the black hole does not emit light, it will attract the light of many stars and form an uninterrupted photocathode. According to Hawking, there will be radiation and it will be very hot, but the inside of the black hole is very cold, and the temperature inside some black holes can even exceed absolute zero, but outside the black hole, due to the constant collision between neutrino particles, it will produce radioactive fever, which can even reach millions of degrees, because the collision between particles can vaporize you instantly.

So you can end your trip here. After all, you are only here to travel, not to be swallowed up by a black hole. So how far can you get close to the black hole without considering the temperature? Theoretically, as long as you stay on the other side of the black hole, you will not be affected by the black hole. Without being swallowed up, your nearest distance to the black hole will be twice the radius of Shevchenko. But in order to observe the black hole stably, we'd better set the safe distance to more than three times. If you break through this distance, you may be caught by the gravity of the black hole. As you approach the center of the black hole, your body will be pulled into a slender noodle under the influence of the acceleration of gravity, and then enter the center of the black hole with an infinitely fatal starting point. It is said that through this starting point, you can come to another universe.