As the flagship instrument of the Russian-German mission “Spectrum-Roentgen-Gamma” (SRG), eROSITA has embarked on the first all-sky survey in the medium X-ray range (up to 10 keV). With a deep dive into the cosmos, eROSITA has revealed stunning X-ray data, showcasing the entire western galactic hemisphere. The eROSITA consortium has published the first catalog (eRASS1) of its all-sky survey, identifying around 900,000 X-ray sources.
This catalog includes roughly 710,000 supermassive black holes, 180,000 active stars within our own Milky Way, 12,000 galaxy clusters, and a host of other mesmerizing cosmic entities. To put it in perspective, a galaxy cluster, or “cluster,” encompasses several thousand galaxies. Our Milky Way alone is home to over a hundred billion stars. And the star closest to Earth? We call it the Sun.
More than 250 scientists across 12 working groups have contributed to this project, and the scope of their findings is vast. Now, it's up to researchers around the globe to comb through these published data and uncover new insights into the universe.
In a separate breakthrough, a research team in London has successfully recreated the environment surrounding a black hole in the lab, aiming to answer fundamental questions about our cosmos.