Ever since Albert Einstein’s general theory of relativity was considered to have predicted black holes by linking space-time with the action of gravity, it has been known that black holes result from the death of a massive star leaving behind a small, dense remnant core.

The point at which tidal forces destroy an object or kill a person will depend on the black hole’s size. … For small black holes whose Schwartz’s Child radius is much closer to the singularity, the tidal forces would kill even before the astronaut reaches the event horizon

black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.

Yes, It’s Possible to Safely Jump Into a Black Hole. But if you’re going to try it, you need to know this one small catch. Scientists say humans could indeed enter a black hole to study it. Of course, the human in question couldn’t report their findings—or ever come back.