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These exclusive pins are rewards for winning @astro_pi Mission Space Lab mentors. Sign up for this year's challenge: https://t.co/3g6tV0h80Z pic.twitter.com/3BWUSv2aVg — Tim Peake (@astro_timpeake) October 10, 2017

Today's dress rehearsal for #Sentinel5P launch complete: Teams at ESA ready to support liftoff and assume control https://t.co/DeTusaJ6KA pic.twitter.com/cxtUtWocmZ — ESA Operations (@esaoperations) October 10, 2017

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Better, quicker medical repair of damaged tissue? #ESABICHarwell @Electrospinner #500ESAstartups https://t.co/x1jbIKlVXU pic.twitter.com/It4CRTIstT — ESA (@esa) October 10, 2017

More on today's #spacewalk and how to watch on the #VITAmission #blog: https://t.co/rucdVSYJOs https://t.co/pj3VcMQKdv — Human Spaceflight (@esaspaceflight) October 10, 2017

#Sentinel5P mission controllers in final dress rehearsal today at #ESOC for Friday's liftoff. All ground systems remain GO for launch 🚀📡 pic.twitter.com/SjDT83iwoN — ESA Operations (@esaoperations) October 10, 2017

A 20th birthday greeting from space for @MuseoGuggenheim #Bilbao from @astro_paolo during #Chasmata https://t.co/VLxVHTF5Ku — ESA (@esa) October 10, 2017

Today! Join the @ESA_nl Open Day and meet our colleagues from @ESABICNoordwijk! #space #innovation #business https://t.co/4l5lEpGehD — ESA Space Solutions (@Space4Europe) October 10, 2017

Head-spinning image of the week: @AstroKomrade & @Astro_Sabot on #spacewalk last week. Another spacewalk today! https://t.co/olpU5qiEOQ pic.twitter.com/RrYsTPU3tK — Human Spaceflight (@esaspaceflight) October 10, 2017