Black Hole and Time Travel

As early as 1795, Pierre-Simon Laplace predicted the existence of stars with such a huge density and mass that the gravity emanating from them does not allow passing sun rays to reach the earth's surface. However, the very astronomical term "black hole" came into use only in 1968 thanks to Wheeler, and until this time the name "frozen star" or "collapsar" was used.

Black holes are such areas of space and time in which a gravitational field of such enormous power operates that no object (even a ray of light) can escape from there.

How does a black hole appear

The evolution of stars depends on their mass in different ways. Astronomers believe that a star-like black hole is formed due to the collapse of a very massive star. Over time, it burns out hydrogen, then helium, and then comes the "x" moment, when the gravity of the surface layers can no longer be counterbalanced by internal pressure and the process of strong compression of the mass begins. If the mass of the star is from 1.2 to 2.5 solar masses, a powerful explosion will occur. During such a catastrophe, most of the star is thrown outward, and the luminosity of the star increases hundreds of millions of times.

Such an outbreak happens very rarely, according to At least in our galaxy it happens about once in a hundred years. A new and very bright star appears, it is also called the "supernova". However, if after such an explosion the mass of matter is still more than 2.5 solar, then as a result of the action of powerful gravitational forces , the star shrinks to a tiny size. After the end of thermonuclear processes, the star can no longer be in a state of stability - it is completely compressed, and the space animal is replenished with another black hole that is inaccessible to the eye. This phenomenon takes the minds of many scientists.

A black hole is a time machine?

Many scientists are still puzzling over whether or not a black hole can be used for traveling through time. Nobody knows what is on the other side of this space funnel. In 1935, Einstein and Rosen put forward the hypothesis that a small incision in one black hole may well be connected to another section of another black hole, thus forming a narrow tunnel through space and time.

On the basis of this theory, astrophysicist Kip Thorn invented an algorithm that uses the rigorous mathematical formulas to describe the principle of work and the physics of a time machine. However, to build a temporary portal of the modern technological level, alas, not enough.

At the same time, the authoritative British cosmologist Stephen Hawking believes that the object, trapped in a black hole, does not disappear without a trace - the energy of its mass returns to the universe in the form of information. At one time, S. Hawking's original theory of black holes became a real breakthrough in the field of astrophysics. Now, according to the new theory, black holes obey the laws of quantum physics. The new theory proposed by S. Hawking makes it impossible to use black holes for temporary travel or displacements in space.

Can we see Kip Thorn's time machine or have to accept Stephen Hawking's theory? As they say, time will tell. In the meantime, it remains only to speculate and hope for new research by scientists.