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New York: Scientists have unveiled the largest ever X-ray map of the universe and found over 9,00,000 high-energy cosmic sources, including more than 7,00,000 supermassive black holes.<\/span><\/p>\n The German \u201ceROSITA\u201d consortium on January 31 published the data collected by the eROSITA X-ray telescope on board the Russian-German satellite Spektrum-RG.<\/p>\n The first eROSITA All-Sky Survey Catalogue (eRASS1) is the largest collection of X-ray sources ever published, the Max Planck Society in Germany, which helped manage the mission, said in an official statement.<\/p>\n \u00a0<\/p>\n<\/p>\n \u201cIn the first six months of observation, eROSITA has already discovered more X-ray sources than have been known in the 60-year history of X-ray astronomy,\u201d it said.<\/p>\n The eRASS1 observations with the eROSITA telescope were carried out between December 12, 2019, and June 11, 2020.<\/p>\n eROSITA was put in \u201cSafe Mode\u201d in February 2022 and has not restarted science operations since, the Max Planck Society said.<\/p>\n Besides around 7,10,000 supermassive black holes in distant galaxies, the 9,00,000 high-energy cosmic sources also included 1,80,000 X-ray emitting stars in the Milky Way, 12,000 clusters of galaxies and a small number of other exotic classes of sources like X-ray emitting binary stars, supernova remnants, pulsars, and other objects.<\/p>\n \u201cThese are mind-blowing numbers for X-ray astronomy,\u201d Andrea Merloni, eROSITA principal investigator, said.<\/p>\n \u201cWe\u2019ve detected more sources in 6 months than the big flagship missions XMM-Newton and Chandra have done in nearly 25 years of operation,\u201d she added.<\/p>\n<\/p><\/div>\n