NASA today revealed that it has teamed up with the European Space Agency (ESA) to, for the first time, measure the spin rate of a supermassive black hole. Using NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and the ESA’s XMM-Newton, astronomers …

NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) has taken its first images of the giant black hole at the center of our galaxy and caught it in the middle of a “flare-up.” “We got lucky to have captured an outburst from …