Black hole history

A constant staple of sci-fi thrillers, black holes are violent, vastly destructive and invisible.
Black holes are regions of space in which the force of gravity is so powerful that everything around is drawn in. Not even light can escape, which is why we can’t see any of this going on.
Experts think there could be up to 100 million black holes in our galaxy alone, and these monsters can grow to become billions of times more massive than the sun. What’s more, at the centre of most galaxies, including our own, lurks a super-massive black hole.
But we don’t know what happens when objects pass through the centre. They might become ‘spaghettified’: stretched apart into long strings of matter; they could even be transported through a short-cut to a different part of our universe. Spooky.