Koichi Wakata, Japan Aerospace Exploration Agency (IMAGE)

NASA/Johnson Space Center

Koichi Wakata, Japan Aerospace Exploration Agency

Caption

Japan Aerospace Exploration Agency astronaut Koichi Wakata, Expedition 38 flight engineer, conducting a session with a pair of bowling-ball-sized free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) aboard the International Space Station.

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NASA

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NASA

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