A5 - Building Blocks - Lyman2.jpg

This color image shows the Hubble Ultra Deep Field region as observed with the MUSE instrument on the European Southern Observatory’s Very Large Telescope. This picture only gives a very partial view of the MUSE data, which also includes a spectrum for each pixel in the picture. This data set has allowed astronomers to measure distances for far more of these galaxies than before and to learn much more about them. Image by the ESO/MUSE HUDF collaboration.