A central prediction of Einstein’s theory of general relativity is that black holes are quite simple bodies. Their nature can be fully described by just their mass and their spin-rate.

Black holes fascinate us all with their incredible masses, jets of X-ray radiation and "feeding" on everything they can find - including other black holes.

I’ve read an interesting article a week ago about black holes and if a human can potentially enter a black hole and survive it. I thought, I pick this topic up for my monday article in the community.

The Hubble Space Telescope (HST) has discovered the most distant and hence oldest systems of binary quasars.

The 6.5 billion solar masses black hole in M87 was first imaged two years ago. Now it’s making the headlines again.