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What the universe looks like, via X-rays

A different view: This orbiting telescope was launched in July last year and despatched to an observing position some 1.5 million km from Earth. Once commissioned and declared fully operational in December, it was left to slowly rotate and scan the depths of space. eRosita’s first all-sky data-set, represented in the image at the top of this page, was completed only last week. It records over a million sources of X-rays. Jonathan Amos, “Breathtaking new map of the X-ray Universe” at BBC Still amazing.