NASA great observatories team up to discover ultra-bright young galaxies
Tuesday, January 7, 2014 - 15:30
in Astronomy & Space
(Phys.org) —NASA's Hubble Space Telescope and Spitzer Space Telescope joined forces to discover and characterize four unusually bright galaxies as they appeared more than 13 billion years ago, just 500 million years after the big bang. Although Hubble has previously identified galaxies at this early epoch, astronomers were surprised to find objects that are about 10 to 20 times more luminous than anything seen previously.