A new study offers evidence that, not all of the light streaming from a black hole’s surrounding disk easily escapes. Some of it gives in to the monstrous pull of the black hole, turns back, and then bounces off the disk and escapes.
Launched from the Baikonur Cosmodrome in Kazakhstan on Saturday, Spektr-RG will detect X-ray emissions from across the sky, including those from huge clusters of galaxies. It could help astronomers better understand dark energy.
