Advent Calendar 2020

It's that time of the year again! Each day until December 24, you can open a door of our online advent calendar to marvel at stunning images of science and find fascinating research information. Be prepared to be amazed and enjoy browsing!

This year's background image of our Advent calendar is based on a view of the galactic centre of the Milky Way, taken with the Very Large Telescope (VLT) of the European Southern Observatory in Chile. At the heart of our galaxy lies a great black hole, which astronomers have named Sagittarius A* - because seen from Earth it lies in the constellation Sagittarius.
_{© ESO/S. Gillessen et al}