Terminator isn't only a movie: it’s the line between night & day. We cross it up to 16 times / 24 hours #hastalavistababy #sunsetchallenge pic.twitter.com/xmS7ZLEJwV — Thomas Pesquet (@Thom_astro) December […]

@astro_luca @ElianaMessineo @WIADpalermo You can send your request via https://t.co/BdU19dDLhp — ESA (@esa) December 22, 2016

Explore the #Moon 🌑 with our updated interactive guide #ESAmoonguidehttps://t.co/7HttuXevYO pic.twitter.com/es2K70UwIG — ESA (@esa) December 22, 2016

.@ESA_Rosetta's journey around the comet – full trajectory from arrival (31 July 2014) to mission end (30 Sept 2016) https://t.co/A8GpfuG7Jf — ESA (@esa) December 22, 2016

Training for a spacewalk self-rescue with mini jet-packs? Use #VR! @astro_kimbrough doing his "#GeorgeClooney in Gravity" impersonation #TBT pic.twitter.com/14KMZB7SBz — Thomas Pesquet (@Thom_astro) December 22, 2016

From outer space to inner eye – accurate lenses thanks to @Space_Station research instruments #technology https://t.co/jBXrBCHnI7 pic.twitter.com/6IRAnI5J73 — ESA (@esa) December 22, 2016

Our year through the lens – a selection of our favourite images for #2016. Full gallery: https://t.co/NBm7N4ZSPB pic.twitter.com/4xiIVHSmyU — ESA (@esa) December 22, 2016

Good morning! https://t.co/GOptrxbvFS — ESA (@esa) December 22, 2016

#OTD 22 December 2011 #Romania becomes 19th #ESA Member State @rospaceagency @esa_romania https://t.co/8Rm6UYaZze pic.twitter.com/qIMVLCiLdZ — ESA space history (@ESA_History) December 22, 2016