Space snaps, Astronaut Don Pettit. 太空快照

American chemical engineer and Nasa astronaut Dr Don Pettit has spent 370 days aboard the International Space Station. This image shows 'star trails' as seen from the ISS. A star trail is a type of photograph that utilises long-exposure times to capture the apparent motion of stars in the night sky due to the rotation of the Earth

Dr Pettit, pictured here working in the cupola aboard the ISS, took hundreds of thousands of photos during three separate stays on the orbiting spacecraft between 2000 and 2012

Astronaut Don Pettit reveals the best of his space snaps | Daily Mail Online

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