The first white hole has been found by astronomers. Black holes are terrifying massive objects lurking in deep space and swallowing anything that comes near. White holes are no less terrifying, but they come in various sizes.
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Stellar black holes can be up to 20 times greater than the sun’s mass, but are relatively small. They exert a powerful gravitational pull on other objects. Every large galaxy contains a supermassive black hole at its center.
Scientists think black holes formed in the early universe, after the Big Bang. Stellar black holes form when the center of a very massive star collapses in upon itself.
Scientists can see the effects of a black hole’s strong gravity on stars and gases around it. When a black hole and a star are orbiting close together, high energy light is produced.
The sun will not become a black hole, but it will die in billions of years. After that, it will become a red giant star, a planetary nebula, and then a cooling white dwarf star.
White holes are the exact opposite of black holes, and they are regions in which space-time flows inexorably outwards. If a crew attempts to enter a white hole, the sheer force of the gamma rays would destroy them and their ship.
The theory of white holes
The theory of white holes was discovered due to the mathematical fascination with black holes. Carl Schwarzschild used Einstein’s field equations to find the equation of mass in empty space-time, which is a mathematical representation of a black hole.
Schwarzschild created an equation for a black hole that does not change in size and has always existed. When reversing time, we get a white hole.
Some scientists doubt that white holes exist, claiming that while they obey general relativity and are mathematically sound, they violate the second law of thermodynamics. That small decrease in entropy can occur as long as the universe’s overall entropy is increasing.
Black holes are excellent at increasing the chaos of space, but white holes, which eject matter, violate this law. If black holes could no longer evaporate and shrink due to the constraints of space-time, they would transform into white holes.
Nasa’s Swift satellite detected a gamma-ray burst in 2006 that lasted for 102 seconds. However, it did not appear to be associated with any star explosion. Still, some years later, scientists introduced the hypothesis that Grb060614 could have been a white hole.