The most fascinating object in outer space is black hole, which is still on the path of exploration. They are extremely dense, with phenomenal gravitational pull that even light cannot escape out of it.
Karl Schwarschild, a German physicist and astronomer who proposed the contemporary version of a black hole in 1915 after coming up with an exact solution to Einstein’s approximations of general relativity.
Schwarzschild suggests that it was possible for mass to be squeezed into an infinitely small point. This would make spacetime bend around it so that nothing – not even photons of light, which carries no mass – could escape its curvature.
The edges of the black hole slip into darkness, today referred as event horizon, and the distance between this boundary and the infinitely dense core – or singularity – is named after Schwarzschild.
In theories, All object have some mass and all masses have a Schwarzschild radius that can be calculated. If the Sun’s mass was squeezed into an infinitely small point, it would form a black hole with a radius of just under 3 kilometers (about 2 miles).
Similarly, Earth’s mass would have a Schwarzschild radius of just a few millimetres, making a black hole no bigger than a marble.
For many years, black holes were exotic eccentricity of general relativity theory. Physicists have became more confident in their belief after the discovery of other extreme astronomical objects, such as neutron stars. Today it’s believed most galaxies have monstrous black holes lurking at their heart ( core).
How Black Holes Are Formed?
As per the researchers, When a stars with a mass at least three times more than that of our Sun, undergo extreme gravitational squeeze and collapse, once their fuel which is hydrogen mostly get exhausted.
With so much mass in a captive volume, the collective force of gravity overrule the building blocks of atoms from occupying the same space, And all this density creates a black hole.
Black hole has been hypothesis in past , but now their is observed by the event horizon telescopes. The black holes are thought to have formed when the ripples created in gravitational sheet of space of the early Universe after the big bang, rapidly expanded in an event known as inflation, causing highly dense regions to collapse.
The primordial black holes, with small masses – some even close to that of Earth – but would be little bigger than a jelly bean. Who knew black holes could be so cute?