NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Shuttle spacewalk. Astronaut Takao Doi practises techniques for constructing the International Space Station during a spacewalk (or extra vehicular activity, EVA). He is working with a robotic crane which is intended to move components around in space. An inland delta in Mali can be seen on the Earth in the background. Photographed aboard the space shuttle Columbia during mission STS-87 (19 November to 5 December 1997).
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