The AzTEC submillimeter camera detected this bright source (left) in a region of the sky. The Smithsonian’s Submillimeter Array then pinpointed the source of submillimeter radiation (center). A visible-light image by the Hubble Space Telescope (right) shows only a faint point that is barely detectable. Combined, these data show that the source in question is a very bright, but very distant and dusty galaxy that existed when the universe was less than 2 billion years old. Credit: UMass Amherst, Harvard-Smithsonian CfA, COSMOS/ACS Team
