When a Black Hole is Our Brightest Star | A Personal Note from Arnold Leitner, Founder
I have been a scientist once. I studied superconducting films at ultra-low temperatures below 500 millikelvins.
If you want to know why, please watch the documentary “The Edge of All We Know,” which documents the incredible achievement of imaging a black hole at the center of a giant elliptical galaxy called Messier 87. This 2020 documentary is now streaming on Netflix, but you can find it on other platforms.

The black hole at the center of Messier 87.