These galaxies date back to the earliest days of the universe. Image Credit: ESO/MUSE HUDF
The discovery was made using the Multi Unit Spectroscopic Explorer (MUSE) instrument on the European Southern Observatory’s Very Large Telescope (VLT) in Chile.
The galaxies were situated in a patch of sky previously investigated by the Hubble Space Telescope and were identified thanks to MUSE’s ability to make observations across a range of wavelengths.
“MUSE can do something that Hubble can’t – it splits up the light from every point in the image into its component colours to create a spectrum,” said astrophysicist Roland Bacon.
“This allows us to measure the distance, colors and other properties of all the galaxies we can see – including some that are invisible to Hubble itself.”