eROSITA Advent Calendar
eROSITA is the primary instrument on-board the Russian-German "Spectrum-Roentgen-Gamma" (SRG) mission, which was successfully launched from Baikonur on July 13, 2019 and placed in a halo orbit around the L2 point. In 2020, eROSITA has perfomed its first all-sky survey (and is close to finishing the second scan).
These are the images for the 2020 advent calender. You'll find 24 highlights from the first year of operation of eROSITA as well as some background information on the telescope itself. Enjoy!

Navigating the X-ray sky

The Shapley Supercluster seen in the eROSITA all-sky survey

eROSITA's sparkling sky: the particle background

Operating eROSITA on-board SRG

The eROSITA cameras

eROSITA Mirrors

The eFEDS Supercluster

A young quasar

Vela and Friends

Calibrating eROSITA

A weird, large amplitude X-ray flare in the nucleus of a galaxy

ROSAT - The father of X-ray surveys

eROSITA finds large-scale bubbles in the halo of the Milky Way

SRG/eROSITA Launch

A giant dust scattering ring

Study for Dark Matter and Dark Energy funded by ERC

Introducing eROSITA on SRG

SRG/eROSITA completes its second all-sky survey

Revealing the Beauty of the Hidden Universe: eROSITA sees first light

A supermassive black hole dims its X-ray lights

The Dark Universe

The supernova remnant N132D in the LMC

A supergiant fast X-ray transient in the LMC

Longest intergalactic gas filament discovered