AI Summary

The eROSITA telescope, the main instrument on Russia‑Germany’s Spektr‑RG observatory, was built by the Max Planck Institute for Extraterrestrial Physics and partners to survey the soft X‑ray sky. Launched in 2019, it has produced deep, sharp images covering large sky areas to map high‑energy sources. In the summer, the German eROSITA Consortium released its second data set, DR2, which is the most comprehensive X‑ray catalog ever published. The catalog expands the census of the high‑energy universe, providing a detailed inventory of X‑ray emitting objects across the sky.

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