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The satellite with X-ray vision | Max-Planck-Gesellschaft

https://www.mpg.de/13591952/the-satellite-with-x-ray-vision

In the early hours of October 23, 2011, ROSAT was engulfed in the waves of the Indian Ocean. This was the end of a success story that is unparalleled in German space exploration research. The satellite, developed and built by a team led by Joachim Trümper from the Garchingbased Max Planck Institute for Extraterrestrial Physics, not only found more than 150,000 new cosmic X-ray sources, it also revolutionized astronomy.
ROSAT was actually supposed to be sent into orbit in

Flattening of a Snowman | Max-Planck-Gesellschaft

https://www.mpg.de/15485371/flattening-of-a-snowman

The trans-Neptunian object Arrokoth, also known as Ultima Thule, which NASA’s space probe New Horizons passed on New Year’s Day 2019, may have changed its shape significantly in the first 100 million years since its formation. In today’s issue of the journal Nature Astronomy, researchers led by the Chinese Academy of Sciences and the Max Planck Institute for Solar System Research (MPS) suggest that the current shape of Arrokoth, which resembles a flattened snowman, could be of evolutionary origin due to volatile outgassing. Their calculations help to understand what the current state of bodies from the edge of the Solar System may teach us about their original properties.
NASA’s spacecraft New Horizons sent the first images

Confident x-ray analysis | Max-Planck-Gesellschaft

https://www.mpg.de/19660838/deep-space-telescopes-xray-analysis?c=153905

Very hot gas, as found in the sun’s corona or in close proximity to black holes, emits very intense x-rays. It reveals the locally prevailing physical conditions, such as temperature and density. But there is one problem that researchers have been battling with for decades: the intensity rates of important emission lines of iron measured in the laboratory do not match those calculated. This causes ambiguity over the magnitude of the gas derived from the x-ray spectra. An international team under the leadership of the Max Planck Institute for Nuclear Physics in Heidelberg has now solved the problem using an exceptionally accurate experiment: theory and experiment finally concur. In future, this will allow x-ray data from deep-space telescopes to be analysed in the underlying atomic models with a high degree of reliability.
two large x-ray observatories which are soon to be sent

Confident x-ray analysis | Max-Planck-Gesellschaft

https://www.mpg.de/19660838/deep-space-telescopes-xray-analysis

Very hot gas, as found in the sun’s corona or in close proximity to black holes, emits very intense x-rays. It reveals the locally prevailing physical conditions, such as temperature and density. But there is one problem that researchers have been battling with for decades: the intensity rates of important emission lines of iron measured in the laboratory do not match those calculated. This causes ambiguity over the magnitude of the gas derived from the x-ray spectra. An international team under the leadership of the Max Planck Institute for Nuclear Physics in Heidelberg has now solved the problem using an exceptionally accurate experiment: theory and experiment finally concur. In future, this will allow x-ray data from deep-space telescopes to be analysed in the underlying atomic models with a high degree of reliability.
two large x-ray observatories which are soon to be sent