Image of the week: @ESA_XMM delivers a space #selfie to celebrate 17yrs in orbit #iotw https://t.co/SmevtO3Fg5 #xrayuniverse pic.twitter.com/9SDP2AUmfv — ESA Operations (@esaoperations) December 8, 2016

#ESATech image of week: close-up view of Europe's next microprocessor for space @ST_Worldhttps://t.co/WFSVFXRwaG pic.twitter.com/FmU3W8XkcI — ESA Technology (@ESA_Tech) December 8, 2016

Take a flight over Mawrth Vallis – a 600 km-long, 2 km-deep outflow channel – with #Mars Express https://t.co/Opu8b6e3Zy — ESA (@esa) December 8, 2016

EUMETSAT Council extends #MetopA 's lifetime and signs agreement with the SAFs for 2017-2022 period https://t.co/qijK6ZkZnr — EUMETSAT (@eumetsat) December 8, 2016

The spheres experiment is fun! Studying relative flight between satellites https://t.co/QrYR2GROnC #Proxima pic.twitter.com/QDYrWqYuns — Thomas Pesquet (@Thom_astro) December 7, 2016

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A 2nd European service module for @NASA_Orion will supply life-support and power to astronauts beyond the Moon https://t.co/q2CgvOAJl7 pic.twitter.com/8aQtRRjDRb — ESA (@esa) December 7, 2016

@AlexBenay @avspacemuseum @csa_asc enjoy your visit! — ESA (@esa) December 7, 2016

Hello #Brazil! You have a gorgeous coastline, and this stained-glass river mouth caught my eyes. 🇧🇷https://t.co/rDRx4RSL6h #Proxima pic.twitter.com/AUvr3aelUO — Thomas Pesquet (@Thom_astro) December 7, 2016

Introducing @esa-sponsored medical doctor spending a year in #Antarctica at –80°C temp.outside. Why? She explains: https://t.co/XNCwWGMT1H pic.twitter.com/93e62h900M — Human Spaceflight (@esaspaceflight) December 7, 2016