XMM-Newton 20th Anniversary

XMM-Newton was launched the 10 December 1999,on the first Ariane-5 commercial mission, from ESA’s Kourou Spaceport in French Guiana.

ESA's XMM-Newton space observatory is the flagship of European X-ray astronomy. It is the most powerful X-ray telescope ever placed in orbit and is observing the 'hot' X-ray universe including objects like neutron stars, black holes and active galaxies.

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