The Universe is so mysterious! In the Universe, there are numerous mysterious bodies. One among them are Black Holes.
Black holes are areas in space where the gravity is super high – high enough even light cannot escape if it enters them.
Some Black Holes are formed when a star deteriorates.
The high gravity of the Black holes is the result of a larger mass being pressed under so much pressure – for example, the compression of a dying star.
Now, let’s see some interesting facts about Black Holes!
Black holes are not visible. Researchers only identify the existence of a Black hole by the movement of the objects nearby.
Since a black hole’s gravitational pull is so strong, objects near it are pulled in and those that are not so close are moved around.
However not everything is pulled into a black hole! An object has to be close enough to the orbit of a black hole to be able to slip in.
Also black holes also eject or push away stuff from it. There are gases seen ejected out of black holes resembling a fountain.
A black hole is not a well defined object with a surface.
Its existence is defined by its horizon – a boundary beyond which the gravity is strong enough to pull everything in.
Even light can’t escape its gravity. Which is why the name!
Black holes can be tiny and isolated, as well as supermassive.
Tiny isolated black holes are usually very hard to find.
Super massive black holes are really big and exist at the centre of galaxies. Even our own galaxy is likely to have a super massive black hole in its center.
Smaller black holes can be identified whenever a star tends to collapse.
There are about ten million to a billion tiny, isolated black holes in the universe.
Our galaxy has thousands of them!
At the centre of the black hole is a lot of infinity. There is infinite gravity, and density at that point.
And time-space also curves infinitely. Scientists have not been able to arrive at a proper conclusion about the center of the black hole.
However most scientists agree that it is the point that breaks all Physics laws.
Due to the enormous gravity, anything that falls into a black hole is believed to be spaghettified, according to one theory.
The object stretches, gets ripped apart before it becomes dimensionless and completely disappears in singularity.
I will make a separate video on theories that prevail about what happens to an object that falls into a black hole!