Physics
What happens beyond a black hole's event horizon?
Quick fact
Black holes form when massive stars collapse under their own gravity.
Why this is interesting
A black hole is an object so dense that its gravity can trap even light itself.
Read the full explanation
Understanding What happens beyond a black hole's event horizon?
The boundary around a black hole is called the event horizon. Once something passes this boundary, it cannot escape.
A deeper explanation
Black holes are not holes in space, but regions where matter has been compressed so much that spacetime itself becomes dramatically curved.