Arc in infrared light (Spitzer)

The distant galaxy, dubbed A1689-zD1, appears as a whitish blob in the Spitzer IRAC close-up view. The galaxy is brimming with star birth. Hubble and Spitzer worked together to show that it is one of the youngest and likely the most distant galaxies ever discovered. Astronomers estimate that the galaxy is 13 billion light-years away. Abell 1689 is 2.2 billion light-years away.