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Ready for Open Dag ESA/ESTEC @Wetenschap_NL @ESA_nl #WvdW #OpenESTEC pic.twitter.com/8f78Sn4YOa — AndrĂ© Kuipers (@astro_andre) October 8, 2017

30 mins go! #openESTEC #WvdW pic.twitter.com/h7O5G43Xws — ESA (@esa) October 8, 2017

A warm welcome to all joining us for #openESTEC today! Doors open at 10:00 CEST https://t.co/RuCwTEYMh8 pic.twitter.com/GadWXNU83W — ESA (@esa) October 8, 2017

Where did all the stars go? What used to be considered a hole in the sky is now known to astronomers as a dark molecular cloud. Here, a high concentration […]

The Netherlands, Belgium and France at night… A special ciao to my colleagues attending @esa #openESTEC tomorrow! Hallo vanuit de ruimte! pic.twitter.com/cjPJ4IpDMQ — Paolo Nespoli (@astro_paolo) October 7, 2017

Heading for #openESTEC tomorrow? Everything you need to know is here. Don't forget your tickets! #WvdW https://t.co/RuCwTEYMh8 pic.twitter.com/6jDUFDmxD2 — ESA (@esa) October 7, 2017

#OTD 7 October 2014, @Astro_Alex made his first spacewalk with @astro_reid. Alexander will return to space on his Horizons mission in 2018 pic.twitter.com/dYkHZ4kQpH — ESA space history (@ESA_History) October 7, […]