Einstein believed that gravity is due to the bending of space-time, so what is the nature of the bending of space-time?

When the volume of a mass object tends to zero, its gravity will reach an unimaginable level, thus changing the space, leading to the inability of light to escape in its space, and then forming space-time distortion. The space-time distortion predicted by Einstein was recently observed by scientists near the neutron star, which is the densest celestial body that human beings can observe in the universe.

The distortion of space-time can not be separated from the gravity of matter, and any energy will change the normal space in an infinite bending way. ? Einstein's general theory of relativity holds that due to the existence of matter, matter and time (space-time) will bend, space-time bending is the result of mass (energy), and gravity is the expression of space-time bending.

Einstein used the theory of space curvature generated by the sun to explain the 43 seconds that Mercury perihelion precession has been unexplained, and the deflection of light from distant stars when passing through the sun.

Extended data

Einstein's general theory of relativity explains why there is no difference between gravity and acceleration. It also explains the relationship between gravity and curvature of spacetime. Using mathematics, Einstein pointed out that an object bends the surrounding space and time. When an object has a large relative mass (such as a star), this curvature can change the path of any object passing through it, even light.

General relativity holds that the bending of space-time will produce gravity. When light passes through some massive celestial bodies, its path is curved, which is due to the curvature of spacetime formed along the massive celestial bodies. Because a black hole is a huge mass concentration, the space-time around it is so curved that even light can't escape.

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