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This one could have been a #FridayIsland but at low tide you can walk to the castle at Mont-Saint-Michel https://t.co/rvuMBkOAr9 pic.twitter.com/NHvoiQZ8xE — Thomas Pesquet (@Thom_astro) January 19, 2017

Sign up for free @edXOnline course on human spaceflight with @esa astronaut @CFuglesang starting 23 Jan. #MOOC https://t.co/nhLrEZZnse pic.twitter.com/ryibiCEHQj — Human Spaceflight (@esaspaceflight) January 19, 2017

Teachers & students from Ireland, Romania, & Portugal will call @Thom_astro in space, 24 January at 16:05 CET https://t.co/XPdS2rlfy6 pic.twitter.com/khcFz6L1jz — ESA (@esa) January 19, 2017

Taking measurements today at Звезда factory for my new space suit. Very simple for me: they can just replicate my old one. Fantastic team! pic.twitter.com/HckYOMnITt — Alexander Gerst (@Astro_Alex) January […]

2nd #Sentinel2 satellite set for launch on 7 March Discover more about #colourvision for #Copernicus https://t.co/z3ddq9f8D1 @esa pic.twitter.com/9aiGUq636X — Copernicus EU (@CopernicusEU) January 19, 2017

Earth observation helps us understand the aftermath of earthquakes. Maybe one day it will help us prevent them. @esa @ESA_Italia #science https://t.co/aoOcCLEWI9 — Luca Parmitano (@astro_luca) January 18, 2017

Update on investigations into anomalies noted in the atomic clocks serving Europe’s #Galileo satellites: https://t.co/SzwiJRmuVT pic.twitter.com/a0UZJDMV4z — ESA (@esa) January 19, 2017

If you could circle the Earth aboard the International Space Station, what might you see? Some amazing vistas, one of which was captured in this breathtaking picture in mid-2015. First, […]

Canadians can apply to be part of the #Sentinel2Go #SocialSpace. Learn more: https://t.co/INYBv3LyyI. https://t.co/YRCf9QgwIu — CanadianSpaceAgency (@csa_asc) January 18, 2017