Now circling the Earth aboard space shuttle Discovery, the STS-124 crew members begin their first full day in space. The astronauts will spend their workday inspecting the orbiter's heat shield and preparing for their arrival at the International Space Station on Monday.

Crew members will use the shuttle's robotic arm to perform a limited inspection of Discovery and the leading edges of its wings. The purpose of this inspection is to ensure that, during the vehicle's climb to orbit, no damage occurred to the tiles that protect Discovery from the heat of re-entry.

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