black hole

 Black holes are one of the most mysterious things in space first because it sucks stuff in and second it is invisible. the smallest black hole know to humans is the XTE J1650 500 its mass is about 3.8 times our suns mass.

The universe largest black hole known to humans is the Messier87 we humans can see it from 55 billion light years away becouse of its size .

You can say that a black hole is a gap in the universe and it try's to suck up everything that gets in his way and in every galaxies center

A black hole is invisible you can see the black hole up there becouse it is sucking up something.

If your wondering how a black hole is formed you have come to the right place.

When ever a Supernova(a giant stars explosion) is formed it have a chance of transforming into a black hole

A star named Betelgeuse will explode in 2022 it is near our solar system if you want more information I have a article about it if you scroll down you can find it

    Feel free to ask anything in the comments