This is the Swedish-ESO Submillimetre Telescope (SEST) which stands at La Silla, but was decommissioned in 2003. In the background you can see the ESO 3.6-metre telescope, which has been in operation since 1987.
The Milky Way shines bright above the Martian looking emptiness of the Atacama Desert, home of all ESO Observatories.
A whole group of ALMA antennas was collected on this UHD image, while they are observing the night sky.
