By combining data from several telescopes, astronomers have detected a young galaxy that formed just three billion years after the Big Bang (eleven billion years ago).
This "teenage" galaxy is forming new stars like crazy, is very dense, and is full of gas and dust. There are likely many more objects like this out there, just a little too faint to see until next-generation telescopes like the James Webb Space Telescope (Hubble's successor) come online.
Astronomers have uncovered for the first time the earliest stages of a massive galaxy forming in the young Universe. The discovery was made possible through combining observations from the NASA/ESA Hubble Space Telescope, NASA‘s Spitzer Space Telescope, ESA’s Herschel Space Observatory, and the W.M. Keck Observatory in Hawaii.