This video shows the growth in worldwide #Galileo #satnav service availability as the number of satellites in space increaseshttps://t.co/cuqeYkwKsr — ESA Technology (@ESA_Tech) December 13, 2017

WATCH @astro_paolo return to Earth together with @AstroKomrade and @SergeyISS – streaming LIVE:Farewells and hatch close 01:30 GMTUndocking 04:30 GMTReentry and landing coverage: 07:00 GMT https://t.co/FXsUPdxmEO pic.twitter.com/wo6Vi8lvYu — ESA (@esa) […]

A last look at @astro_paolo's @ISS_Research before he returns home tonight… from 🍕to 🥗, counting calories, algae and testing radiation vests. #VITAmission #blog: https://t.co/VC8IPO6QfU pic.twitter.com/H2M4s1kiPl — Human Spaceflight (@esaspaceflight) December […]

Watch again as #Galileo satellites Europe’s #Galileo satellites 19-22 lift off from Europe’s Spaceport atop #Ariane 5 https://t.co/jXEoRdHbNE – launch replay on @youtube — ESA (@esa) December 13, 2017

New images from last night's #Ariane5 of the #Galileo quartet, now added in our @Flickr gallery https://t.co/1DcAZkFaYE pic.twitter.com/H8C0RiqQ19 — ESA (@esa) December 13, 2017

#ICYMI Here's last night's launch of #Ariane5 with #Galileo quartet aboard Full story: https://t.co/IYQMkxWHZw pic.twitter.com/ip3uvJxYBN — ESA (@esa) December 13, 2017

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#Galileo launch brings #navigation network close to completion.https://t.co/QYP6vjA1VD pic.twitter.com/kzaMRleGNU — ESA (@esa) December 12, 2017

All 4 #Galileo satellites now separated. Will now be checked out and brought to life. The satellites will be moved to final position in the coming months. https://t.co/l9I0cKf31I — ESA […]

Two passengers deployed: separation confirmed for the first pair of #Galileo satellites! #VA240 🛰 🛰 pic.twitter.com/JaYiROAqp1 — Stéphane Israël (@arianespaceceo) December 12, 2017