Black Hole
Black hole is black planet from which light did not pass. It has highest gravitational force that cant pass light.
how black hole formed?
black form after contraction of sun into white planet.
you can see cycle.
Black hole is a astronomical structure which is formed by the supernovae explosion.
when a star with huge mass and small radius reaches the end of its lifetime
it becomes more denser and it makes supernovae explosion.
black holes have huge density due to which it has huge gravatational potential.
At blackhole spacetime bends more.
the escape velocity of black holes is more than the speed of light
even light cannot escape from black holes that is the reason they are black.
nothing can escape from black hole since nothing can travel faster than speed speed of light.