Launched from Baikonur on July 13th 2019 to the second Sun-Earth Lagrange point (L2), the Russian-German SRG mission has now started its main task. On December 8th, after an extensive program of commissioning, calibration and performance verification of its two X-ray telescopes (ART-XC and eROSITA), the satellite has begun observing the sky in continuous scanning mode. As SRG follows the revolution of Earth, and hence also of the L2 point, around the Sun, it will perform eight complete surveys of the whole sky, one every six months, for the next 4 years. Pre-launch predictions suggest that, over that time, the eROSITA instrument, conceived, designed and built at MPE, should discover approximately 100,000 clusters of galaxies, around 3 million accreting supermassive black holes and half a million active stars. more

Astronomers discover the heaviest black hole in the nearby universe with 40 billion solar masses more

Observations with eRosita promise a breakthrough in our understanding of the energetic universe more

First Light images by the eROSITA X-ray telescope. You are free to use the images for your eROSITA reporting, please give the appropriate copyright with each image. more

The scientific performance demonstrated in the first weeks of operations of the eROSITA X-ray telescope promises a breakthrough in our understanding of the energetic Universe. more

The physical process driving Gamma-Ray Bursts might be synchrotron radiation after all more

The commissioning phase of the eROSITA X-ray telescope aboard the SRG spacecraft has just been completed. During this phase, all seven eROSITA cameras have been switched on individually, and demonstrated performance satisfying the mission requirements. As of Sunday 13 October 2019, all seven telescope modules are operating simultaneously, and eROSITA has entered full science operations, beginning with the calibration and performance verification (CalPV) phase. Early images and results from eROSITA will be presented at a “first light” symposium to be held at MPE in the afternoon of Tuesday October 22nd. Interested members of the media should contact Hannelore Hämmerle (see side column) for more details. more

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