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26 Years in Space: XMM-Newton

Name: 26 Years in Space: XMM-Newton
Start: 2025-12-10T00:00:00-10:00
End: 2025-12-10T23:59:59-10:00
Location: Low Earth Orbit (LEO)

December 10, 2025

European Space Agency (ESA) craft surpasses 26 full years / begins 27th year in space today, launched 1999, in very eccentric elliptical LEO studying X-ray emissions, star-forming regions, galaxy clusters, environment of supermassive black holes, and mapping dark matter.