XMM-NEWTON | UCL Department of Space and Climate Physics - UCL – University College London
ESA - XMM-Newton factsheet
XMM-Newton — Wikipédia
ESA - XMM-Newton overview
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XMM-Newton | Description, Discoveries, & Facts | Britannica
Space telescope - Wikipedia
Technical Details - OM - XMM-Newton - Cosmos
XMM-Newton — Wikipédia
Technical Details - Mirrors - XMM-Newton - Cosmos
ESA - XMM-Newton overview
Newtonteleskop – Wikipedia
ESA - XMM-Newton factsheet
XMM-Newton | Description, Discoveries, & Facts | Britannica
XMM-Newton - Wikipedia
ESA - XMM-Newton overview
File:Schéma-XMM-Newton-fr.png - Wikimedia Commons
Isaac Newton Telescope - Wikipedia
File:Spitzer, Hubble and XMM-Newton.jpg - Wikimedia Commons
ESA - XMM-Newton overview
An Aging Pulsar has Captured a new Companion, and it's Spinning back up Again - Universe Today
