While his five colleagues were sleeping, astronaut Alexander Gerst photographed the International Space Station (ISS) at night — and ended up with this enchanting series of images.
Gerst, a European Space Agency (ESA) astronaut from Germany, took the photos during a six-month mission last year that ended in November.
He's been shooting his surroundings while working at ISS and these pictures are a spooky insight into the research centre after hours, capturing the silent, floating world of living in space.
In October, the ESA reported that Gerst left the relative safety of the station to venture into open space with NASA astronaut Reid Wiseman — a brave guy.
A green, mesmerising hue in the darkness makes the station look like something out of the movie "Alien".
Two empty space suits don't make things any less creepy.
A lone astronaut peers up from a door.
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