Ain't no mountain high enough … https://t.co/4NyiMYL7Bh — ESA (@esa) July 31, 2017

Space is our middle name ? — ESA (@esa) July 31, 2017

At work on Earth! @esa astronaut @Thom_astro recently visited #NASAMarshall's POIC to help improve @ISS_Research! >> https://t.co/zgaTBgj2Hs pic.twitter.com/jxajuE727k — NASA Marshall (@NASA_Marshall) July 31, 2017

Image of our Soyuz captured by our @Space_Station Commander just seconds before contact. pic.twitter.com/5jAtvnljXf — Randy Bresnik (@AstroKomrade) July 31, 2017

An extremely active stellar nursery, seen by @ESAHerschel in @ESAscience #Imageoftheweek https://t.co/EeRfzsrC4h pic.twitter.com/FBWptLd0W4 — ESA (@esa) July 31, 2017

The flying kettle – drones deliver warm meals to isolated villagers in #Portugal w @esabicportugal #spacesolutions https://t.co/Fg6JqzNkRl pic.twitter.com/48PtBOWT0m — ESA (@esa) July 31, 2017

Hockey fans around here? This is your galaxy! @ESA #Hubble Picture of the Week https://t.co/MfExEpozzc pic.twitter.com/iGXQnJ5i5d — HUBBLE (@HUBBLE_space) July 31, 2017

Here we are on the orbit. Thanks to Fyodor, Peggy and Jack for meeting. There are a lot of work ahead. Photos by Jack Fischer#iss #мкс pic.twitter.com/UZSYpKB8Gt — Сергей Рязанский […]

#OTD STS-46 crew: M. Ivins, @Astroclaude (CH), A. Allen, J. Hoffman, L. Shriver, @FranklinChangD, F. Malerba (IT), official portrait! pic.twitter.com/BhV0Td8Fnw — ESA space history (@ESA_History) July 30, 2017

The first Swiss citizen in space, @esa astronaut @Astroclaude Nicollier, launched #OTD #25years ago on STS-46 @esaspaceflight @ESA_EAC pic.twitter.com/9lqAaTfI6L — ESA space history (@ESA_History) July 31, 2017