ESA astronaut Thomas Pesquet is spending six months on the International Space Station as part of his second mission "Alpha". In his free time, like many astronauts, he enjoys looking out of the European-built Cupola windows at Earth. This collage of pictures shows London, United Kingdom.
Thomas asked to have the series of highly zoomed pictures aligned into this collage to show the river in detail. The International Space Station flies at roughly 400 km altitude so Thomas used the longest lens available onboard: 1150 mm.
On the ground, the images were digitally rotated and assembled into this large collage. As the images are stitched together after they are taken there is a missing area. Zoom in and explore the capital city.