Twenty years of X-ray astronomy with XMM-Newton – Satellite News Digest

The XMM-Newton X-ray observatory developed and built by Airbus for the European Space Agency (ESA) lifted off on 10 December 1999. Since its launch, XMM-Newton has simultaneously collected X-rays, visible and ultraviolet light and demonstrated its role as one of the most important astronomical observatories of all time.

http://www.sat-nd.com/archive/?id=2019120902

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