And an @ESA_XMM image taken this week 17 years on and still going strong https://t.co/z9Ph1lMxVv
— ESA (@esa) December 10, 2016
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And an @ESA_XMM image taken this week 17 years on and still going strong https://t.co/z9Ph1lMxVv
— ESA (@esa) December 10, 2016