German-made space telescope has created the most detailed map of black holes and neutron stars
An observatory called eROSITA was launched in2019 - it became the first space-based X-ray telescope capable of capturing the entire sky. It is the main instrument aboard the Russian-German spacecraft Spektr-Roentgen-Gamma, which sits in an area known as the Lagrange point, one of five stable points around the Sun-Earth system where the gravitational forces of the two bodies are in equilibrium. From this vantage point, eROSITA can clearly observe the universe, which the device photographs with powerful X-ray instruments.
eROSITA started taking first pictures in October 2019of the year. Since then, he has completed three all-sky surveys, creating sky maps showing the distribution of X-ray sources in the universe.
This data has not yet been published for a widescientific community, but the researchers note that the catalogs contain information about 3 million sources of X-ray radiation - black holes, neutron stars and galaxy clusters. About 77% of these sources are distant black holes in other galaxies, 20% are neutron stars, stars and black holes in the Milky Way. The remaining 3% are galaxy clusters.
Earlier observations of the telescope have already led tointeresting discoveries, including the detection of giant X-ray bubbles emanating from the center of the Milky Way. Mission senior scientist Andrea Merloni noted that with the first public scientific release, eROSITA could shed light on some long-standing cosmological mysteries, including the distribution of dark energy in the universe.
Data from spy satellites helped to find out the cause of melting glaciers in Asia
New nanofiber quickly converts seawater into drinking water
A resident of Turkey accidentally found traces of an unknown civilization in the courtyard of the house