Our image of the week is circular. @Space_Station astronauts circling Earth pose for a picture: https://t.co/OLbKsewYLh pic.twitter.com/Vx2xoixWYZ — Human Spaceflight (@esaspaceflight) August 15, 2017

How to protect astronauts from cosmic radiation? New research opportunity using @GSI_en's particle accelerator: https://t.co/kFrkX4rbwe pic.twitter.com/QsXnoGlSNj — Human Spaceflight (@esaspaceflight) August 15, 2017

This powerful solar eruption captured by SOHO in October 2014 was tracked through the Solar System by 10 spacecraft https://t.co/PMUxkTHBfn pic.twitter.com/TEs2N807ad — ESA (@esa) August 15, 2017

And Buon #Ferragosto! https://t.co/EhFre7UMO4 — ESA (@esa) August 15, 2017

A @SpaceX Dragon is headed our way… But we, space cavaliers of House #ISS will tame it! (we just need practice😀) pic.twitter.com/4Czj2LkO2B — Paolo Nespoli (@astro_paolo) August 15, 2017

Tracking a solar eruption through the Solar System. Full story: –> https://t.co/PMUxkTHBfn https://t.co/942byzSYWv — ESA (@esa) August 15, 2017

New VMC Images direct from Mars! 10 images taken 18:56:35 14.08.2017 https://t.co/fwSs4cJFKi #marswebcam pic.twitter.com/cPB5mRREOQ — VMC – Mars Webcam (@esamarswebcam) August 15, 2017

A selection from @astro_timpeake's photos, more here: https://t.co/w0zJulwjfJ https://t.co/txyc4SCqNh — ESA (@esa) August 15, 2017