Due to the breakdown of institutional cooperation between Germany and Russia after the invasion of Ukraine, the instrument stopped collecting data on February 26, 2022.

[4] eROSITA was originally designed by the ESA for the International Space Station, and it was concluded in 2005 that its accommodation on a dedicated free flyer would provide significantly improved scientific output.

[5] The eROSITA telescopes are based on the design of the ABRIXAS observatory launched in April 1999, whose battery was accidentally overcharged and destroyed three days after the mission started.

The primary science goal is to measure dark energy through the structure and history of the Universe traced by galaxy clusters.

[10] In June 2022, Roscosmos announced its intent to restore the operation of eROSITA unilaterally, which was criticized by experts for its potential to damage the telescope.

First science verification results were released on October 22, 2019,[14] including high-resolution spectra of Supernova 1987a, images of the Large Magellanic Cloud and galaxy clusters, as well as light curves of a highly variable Active Galactic Nuclei.