The data was collected by the eROSITA X-ray telescope on board the Spektrum-RG satellite. The map, known as the eRASS1, contains over 900,000 sources, including more than 700,000 supermassive black holes.
This is the largest collection of X-ray sources ever published and has already surpassed the number of known X-ray sources in the history of X-ray astronomy.
The eRASS1 observations were conducted between December 2019 and June 2020.
This groundbreaking achievement in X-ray astronomy has discovered more sources than the well-known missions XMM-Newton and Chandra have found in their combined 25 years of operation.
For more information visit at https://happenrecently.com/zepto/?amp=1
