Spektr-RG is a Russian-German space observatory launched in 2019-Jul-13 into a halo orbit around the Sun-Earth Lagrange-2 point. It is designed to study the universe in x-ray light through its two primary instruments, eROSITA and ART-XC. It remains in active operation as of 2022
The first all-sky x-ray survey of Spektr-RG via the telescope's eROSITA instrument, 2020-Jun-11
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