Astronomers Might Soon Have Many More Glimpses Into the Early Universe

For decades, scientists have been on the hunt for brilliant galaxies in the distant universe. These quasars were first noticed for being spectacularly bright – some of the most energetic objects ever discovered. But astronomers think many of them – in fact, the vast majority from the early universe – may be in hiding, camouflaged behind much closer galaxies.Because of their brightness, astronomers want to use quasars to probe the era of reionization. This is a ti