.@ESA's Director of Earth Observation Programmes, @AschbacherJosef, and President of the Romanian Space Agency, Marius-Ioan Piso, sign new Collaborative Ground Segment Cooperation agreement for #Sentinel data.https://t.co/G5Dbsi3zCo pic.twitter.com/jf1URDU93v — ESA EarthObservation […]

Live in 10 mins on @ASI_spazio TV, @astro_paolo speaking live from Houston about his #Vitamission and return to Earth (mainly Italian) https://t.co/WIYHbtoOoU — ESA (@esa) December 20, 2017

#OTD 20 December 1981 launch of #Marecs A, 1st European Maritime Communications Satellite on #Ariane1 L04 from Kourou @InmarsatGlobal pic.twitter.com/hFCgBubZsQ — ESA space history (@ESA_History) December 20, 2017

Last-minute #Christmas spot giveaway from ESAshop! Who do you think most deserves to receive a festive space mug?Reply by 15:00 CET (14:00 GMT] using #spacemug to nominate your favourite #spacetweep […]

When you wish upon your nearest star… send good wishes to your friends in space this #Christmas https://t.co/AViJ8rHvAQ pic.twitter.com/wUiOwCqRDf — ESA (@esa) December 20, 2017

Happy to see my friends arrived at their new home! Now the @Space_Station has a full crew and we have more people to follow for our daily dose of #space: […]

ESA went to CERN to irradiate space components and equipment with a more powerful high-energy ion beam then they'd ever used before – their experiment subjects including a complete @Raspberry_Pi […]

Hello Year 1! To help you get started on your space topic check out our #ESAkids webpages with @Paxi_ESAKids https://t.co/nR91Lc9zNG — ESA (@esa) December 19, 2017

Today's crew arrival in the Soyuz MS-07 crew ship makes five spaceships parked at the space station. https://t.co/c6G2ZtJtmo pic.twitter.com/ci8z39USz0 — Intl. Space Station (@Space_Station) December 19, 2017

Painstaking metrology, the science of measurement – or how the Solar instrument on the @Space_Station delivered the most precise reference data on our star's visible energy output, improving climate-change models […]