Melted plastic as a stand-in for transparent metals in our image of the week: https://t.co/jFaLhTG6uV https://t.co/q5cag46a3G — Human Spaceflight (@esaspaceflight) December 19, 2017

#LakeChany, one of #Russia’s largest lakes, seen icebound by #ProbaV #EarthObservation minisatellite:https://t.co/7Rxm2tPpzB pic.twitter.com/YBZuZWvapt — ESA EarthObservation (@ESA_EO) December 20, 2017

Other #spacemugs are available ; )https://t.co/zk0fIUgXyD — ESA (@esa) December 20, 2017

A look back at our colourful Space Science #ImageOfTheWeek feature this year. Which was your favourite? Next entry in the new year! Full archive: https://t.co/LCnJiAWUv5 pic.twitter.com/AFhsH3gsJU — ESA Science (@esascience) […]

Happy Christmas and thanks for being good sports! — ESA (@esa) December 20, 2017

@owen_becca Congratulations! A #spacemug will be on its way to you shortly. Please DM us your street address. — ESA (@esa) December 20, 2017

A shoutout to all great #teachers everywhere as the school year ends! And thanks to everyone for all your great #spacemug nominations #stem https://t.co/TAv8eNGOFV — ESA (@esa) December 20, 2017

And the winner of the #ESAshop #spacemug is @owen_becca because we love great science teachers! https://t.co/ea9WHlxIwH pic.twitter.com/Ed1gEpDOj8 — ESA (@esa) December 20, 2017

Some heartwarming nominations coming in for #ESAshop #spacemug giveaway – warning selfies being discounted! Send your nominations by 15:00 CET using #spacemug, don't forget to tell us why pic.twitter.com/e2RpRKcpax — […]

.@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 […]