Last Wednesday (23), astronauts Matthias Maurer (ESA) and Raja Chari (NASA) spent around seven hours on a spacewalk outside the International Space Station (ISS), carrying out maintenance work.
What the two didn’t realize was that keeping tabs on the feat was Sebastian Voltmer, a freelance astronomer from the town of Sankt Wendel, Germany. And he took the opportunity to photograph the opportunity – from here on Earth, from an angle unprecedented for many astronomy enthusiasts.
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