20 Biggest Questions in Science

Page 6 of 11

16. What’s at the bottom of a black hole?

According to Einstein, when a black hole is created by a dying star, it continues to cave in until it forms an infinitely small point called a singularity. The nature of the center of the black hole is still unknown but a recent idea called M-Theory may soon have the answers we need.

Pixabay/Public Domain

Page 6 of 11