Interesting Facts About Black Holes

Black hole


Intermediate-sized stellar-mass black holes form when a massive dying star or supernova explodes and the remaining core collapses under the weight of the massive gravitationally dying star. Black holes are huge—objects crammed together—with gravity so strong that nothing can escape, not even light. Instead, when black holes collide, they warp spacetime and scatter more energy than the brightness of all the stars and the universe combined, but in the form of gravitational waves. Black holes are the only objects in the universe capable of trapping light solely through the force of gravity.

A black hole refers to a region of space where the singularity's gravitational force is so strong that even light cannot escape its attraction. A gravitational singularity is a one-dimensional point where a huge mass is squeezed into an infinitesimal space. When a star collapses into an extremely small space, it still retains all of that mass. Eventually the remaining core contracts into a tiny, infinitely dense singularity that forms the center.

Supernova


During the collapse, the star's core begins to contract into the stellar center of gravity. The collapse process causes a supernova explosion that blows up all the outer layers of the star. As a result, only the cold residue begins to collapse on itself due to its own mass. At this point, the gravitational pull becomes so strong that even light cannot escape it.

Black holes distort spacetime and slow down time - The mass of a black hole is so dense and the gravity of its singularity is so strong that, according to Einstein's general theory of relativity, it actually distorts the spacetime surrounding it, and even light cannot escape. . Like long dark tunnels to nowhere (or a giant garbage dump), black holes create such a strong gravitational pull that nothing nearby, not even light, can escape absorption. Long ago, the British multifaceted John Michell predicted the existence of dark stars so massive or so compressed that they could have such a strong gravitational pull that not even light could escape; black holes did not receive their universal name until 1967. John Mitchell developed the theory of black holes in 1783 - John Michell (1783) and Pierre-Simon Laplace (1796) first proposed the concept of "dark stars" or objects that , if compressed into a sufficiently small radius, will have an escape velocity that even exceeds the speed of light.

Although in the 18th century they were considered objects with intense gravitational fields (from which light cannot escape), it was Karl Schwarzschild who, in 1916, provided the first modern solution to general relativity characterizing a black hole. Albert Einstein pointed out that when a massive star dies, a dense core is left, and if the mass of the core is greater than three times the mass of the Sun, the force of gravity will overcome all other forces and result in the creation of a black hole. The singularity has an almost infinite density and generates a huge gravitational force. The Singularity will always remain in your future. The singularity at the center of a black hole can shrink down to smaller than an atom and eventually become an infinitesimal point in space containing infinite mass.


Sagiterius A


Since gravitational time dilation occurs near black holes, if someone could board a spacecraft, fly around the black hole (along the event horizon, of course), and come back to our Earth, then one would really be able to see into the future. Hawking radiation is due to quantum effects near the event horizon. Just 26,000 light-years from the sun, Sagittarius A is one of the few black holes in the universe where astronomers can actually observe the flow of nearby matter. In fact, 25,640 light-years away from the center of our galaxy is a black hole called Sagittarius A, or Sagittarius A, with a mass 30 million times that of the Sun.

Our Milky Way galaxy revolves around Sagittarius A* (or Sagittarius A*), which contains the mass of about 4 million suns. The one in our galaxy, the Milky Way, is called Sagittarius A and has a mass equal to four million suns and can fit inside a sphere the diameter of the sun. Sagittarius A* is in the constellation Sagittarius and has a mass of about 4 million suns. A quasar called J0313-1806 is located in the largest galaxy in the Milky Way, 1500 light years away in the constellation Monoceros.

Milky way galexy



At the center of Centaurus A is a 55-million-solar-mass black hole, with two streams of matter receding from the Milky Way at about half the speed of light in space of about 1 million light-years. An artist's concept showing activity at the center of our galaxy, which hosts a supermassive black hole about four million times our own mass in a region known as Sagittarius A* or Sagittarius A*. A stellar black hole can be as massive as 20 times the mass of the sun, and its size can fit in a sphere 10 miles in diameter. Scientists don't fully understand how supermassive black holes form, but these massive celestial monsters likely emerged shortly after the Big Bang and are thought to exist at the center of every galaxy, even the smallest.

As if black holes weren't dangerous enough, matter gets so hot just before the last dive that it can violently emit X-rays, high-energy forms of light (and the rays can emit light with even more energy than X-rays).