Geology of Mercury mapped by @NASA Messenger, details in the caption: https://t.co/9D2m2MK76i — ESA (@esa) October 14, 2017

Second LEOP report – all nominal; excellent satellite. Thanks to all @ESA_EO @CopernicusEU @DutchSpace @Eurockot https://t.co/qOAmGoGgjy — Josef Aschbacher (@AschbacherJosef) October 14, 2017

Liftoff! Almost 3 tons of food, fuel and supplies launched to @Space_Station at 4:46am ET: https://t.co/KX5g7zfYQe pic.twitter.com/WsRPDs6EPM — NASA (@NASA) October 14, 2017

A look back at our #space week in images: from #openESTEC via #Mercury to #Sentinel5P launch https://t.co/aGpF6nMai6 pic.twitter.com/18NoSp0cm1 — ESA (@esa) October 14, 2017

Launch the weekend with us! catch up on #Sentinel5P highlightshttps://t.co/1u44EIZphy https://t.co/aBvtHoHnBc — ESA (@esa) October 14, 2017

#Saturday catchup – relive #Sentinel5P launch event https://t.co/vGEXMX5hfl https://t.co/aBvtHoYYZM pic.twitter.com/WgWt9ruKnA — ESA (@esa) October 14, 2017

Familiar green and red tinted auroral emission floods the sky along the northern (top) horizon in this fish-eye panorama projection from September 27. On the mild, clear evening the Milky […]

Image of the California fires caught by #Sentinel3 https://t.co/k5xQpnL7Vz — ESA (@esa) October 13, 2017

.@Astro_Paolo talks about picturing Earth from the station and seeing how human's influence the planet. #AskNASA pic.twitter.com/BAymL2Joz6 — Intl. Space Station (@Space_Station) October 13, 2017