A sungrazing comet with a Milky Way backdrop 😍 [via @ESA/@NASA SOHO / @USNRL LASCO C3] pic.twitter.com/JHKwgJzm2o — Karl Battams (@SungrazerComets) December 21, 2017

good try — ESA (@esa) December 21, 2017

#2017YearinReview – let's take a look back at some highlights, including @Thom_astro & @astro_paolo aboard @Space_Station, @CopernicusEU #Sentinel, #smallGEO & #Galileo launches and more https://t.co/5DsNXydR3b — ESA (@esa) December 21, […]

ESA's next mission to be propelled by butane: GomX-4B #CubeSat will use the same fuel as a cigarette lighter to manoeuvre around its near-twin – developed for ESA by @GomSpace_Aps […]

Merry Christmas! — ESA (@esa) December 21, 2017

There's a new #VR tour of the @Space_Station in town. Get the #WindowsMR app and explore the International Space Station with videos by @esa astronauts: https://t.co/jsSBDwe3DV pic.twitter.com/5KgzizlFgc — Human Spaceflight […]

#WhereOnEarth was this satellite image captured? Guess the name of this island. The answer will be revealed tomorrow during #EarthFromSpace.@CopernicusEU @ESA pic.twitter.com/hhQe1H6hMT — ESA EarthObservation (@ESA_EO) December 21, 2017

#ESATech image of the week: one of Russia's largest lakes seen as an icescape from orbit, imaged by @PROBAVegetation minisatellite: https://t.co/YeykKSBrD8 pic.twitter.com/KHqOM4lIA7 — ESA Technology (@ESA_Tech) December 21, 2017

#21December: #SummerSolstice or #WinterSolstice? It depends on which hemisphere you live in: https://t.co/jR6XoiBKWO #LongestDay #ShortestDay pic.twitter.com/1peqYf0jHx — ESA EarthObservation (@ESA_EO) December 21, 2017

Moving fir tree forest? Life Inside a snow globe? What do you think? @esaspaceflight image of the week https://t.co/oyaVr8tQ1s pic.twitter.com/0OcgzuSXpL — ESA (@esa) December 21, 2017