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This Is What The Entire Sky Looks Like Through X-Ray Eyes

A space telescope launched in July 2019 has just completed its first survey. For months, the eROSITA telescope aboard the Spektr-RG space observatory has been scanning the entire sky, collecting observations for the deepest all-sky survey in X-ray wavelengths.

Now, all those data have been compiled into a map containing over 1 million bright X-ray objects - approximately doubling the number of such objects from the entire 60 years of X-ray astronomy prior.

The Vela supernova remnant. (Peter Predehl, Werner Becker/MPE, Davide Mella)

"This all-sky image completely changes the way we look at the energetic universe," said astrophysicist Peter Predehl, eROSITA principal investigator at the Max Planck Institute for Extraterrestrial Physics (MPE).

"We see such a wealth of detail - the beauty of the images is really stunning."

Most astronomical objects emit X-rays, but in different proportions to other wavelengths. X-rays have very short wavelengths, and are therefore very high energy - emitted by the hottest and most energetic objects, like black holes, neutron stars, quasar galaxies, and supernova remnants.

The Shapley Supercluster of galaxies. (Esra Bulbul, Jeremy Sanders/MPE)

(Georg Lamer/Leibniz-Institut fur Astrophysik Potsdam, Davide Mella)

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