You can run but you can't hide…from Earth-watching satellites — ESA (@esa) September 8, 2017

We're watching … — ESA (@esa) September 8, 2017

Health industry needs the space industry: Apply now by October 1 for the Space2Health Hackathon in Darmstadt! @esa https://t.co/diLbUzft5B pic.twitter.com/t9nZzFZWXU — Merck (@merckgroup) September 8, 2017

Thanks to @astro_paolo for a special #ESOC50 greeting from space! pic.twitter.com/YxmeWhVLZR — ESA Operations (@esaoperations) September 8, 2017

Now on an @esaoperations tour w/ @brigittezypries, @RegHessen V. Bouffier and @Stadt_Darmstadt J. Partsch #ESOC50 thx for coming! pic.twitter.com/xlDQHDYzIi — Jan Woerner (@janwoerner) September 8, 2017

Celebrating #ESOC50 with Minister @brigittezypries, @RegHessen V. Bouffier, @Stadt_Darmstadt J. Partsch and @esaoperations R. Densing @esa pic.twitter.com/T6kgyPLTVR — Jan Woerner (@janwoerner) September 8, 2017

Thank you! — ESA (@esa) September 8, 2017

If you would like to follow #ESOC50 celebrations LIVE throughout this evening (mainly in German)… https://t.co/O4QoAUqFmi — ESA (@esa) September 8, 2017

Travel back in time through 50 years of operating our spacecraft! #ESOC50 timeline #FlashbackFriday https://t.co/S3KjilnPxh pic.twitter.com/NhCcjHhCU8 — ESA (@esa) September 8, 2017

Today's #EarthfromSpace takes us over the #PetermannGlacier Glacier in #Greenland, seen by #sentinel2 https://t.co/7LwqZiSDUI — ESA (@esa) September 8, 2017