U.S. Markets open in 6 hrs 8 mins
3 / 18

What Will First Photos of Black Holes Look Like?

This crescent-shape image is the best fit to observations of Sgr A*, the supermassive black hole at the center of our galaxy, according to a January 2013 study.

Amazing black holes detected

Two X-ray space observatories, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency's XMM-Newton, have teamed up to measure definitively, for the first time, the spin rate of a black hole with a mass 2 million times that of our sun. (NASA)