The Rhine-Main area in #Germany as seen by #Sentinel2 is @esaoperations #IOTW – includes #Darmstadt, home to ESOC — ESA (@esa) November 17, 2016

Mapping the Early November 2016 Bushfire Burnt Areas in #Sydney #Newcastle Region Australia with #Sentinel2 imagery — BigData Earth (@BigDataEarth) November 17, 2016

Good luck from all at ESA to @Thom_astro who is set for his first spaceflight today! #AllezThomas #Proxima — ESA (@esa) November 17, 2016

Good luck with your launch tonight @Thom_astro! Another one to watch today on @esa TV at 19:30 We'll be watching 🙂 — UK Space Agency (@spacegovuk) November 17, 2016

Today #Ariane5 will launch 4 #Galileo sats for the first time. Video update on status of Europe's Galileo system — ESA (@esa) November 17, 2016

#Galileo update from Kourou: Weather status is GREEN and EPC filling underway, for launch of #Ariane5 #VA233 at 13:06 GMT — ESA (@esa) November 17, 2016

First up today – #Galileo quartet lift off on #Ariane5 at 13:06 GMT/14:06 CETLIVE from 12:36 GMT/13:36 CET (corr) — ESA (@esa) November 17, 2016

L-0: Launch day! Check out this video to see what will happen. Of course I know it by heart 😉 — Thomas Pesquet (@Thom_astro) November 17, 2016

#Baikonur seen from space by @Astro_Alex from @Space_Station & by @CNES satellite Pléiades. More on #Proxima #blog — Human Spaceflight (@esaspaceflight) November 17, 2016