How Far Away Is The Nearest Black Hole To Earth?

The nearest black hole ever discovered

(International Gemini Observatory/NOIRLab/NSF/AURA/J. da Silva/Spaceengine/M. Zamani — https://noirlab.edu/public/images/noirlab2227a/)

Ever since 1916, when Albert Einstein theorized that black holes could exist, people have been fascinated with the concept. A place in space where the rules of physics literally break down and light cannot escape is something that will always draw the imagination. Since Einstein’s postulation over a century ago…