Five gamma-ray blazars set new distance record

Bright galaxies in early universe suggest rapid growth of supermassive black holes

gamma-ray blazars

FAR OUT  Scientists have detected the five farthest gamma-ray blazars known. These bright galaxies, powered by supermassive black holes, were spotted using NASA’s Fermi Gamma-ray Space Telescope. Locations of the five blazars are marked on an image of the sky taken in gamma rays.

Scott Wiessinger/NASA’s Goddard Space Flight Center

WASHINGTON — Scientists have spotted a quintet of record-breaking blazars.