Shuttle Links To Space Station
Discovery astronauts have completed a second spacewalk, this one over seven hours long.
The two-man team's repairs to the International Space Station included removing a broken gyroscope and installing a new one.
The spacewalk comes as NASA officials consider sending the crew to fix material dangling from Discovery's belly during a spacewalk scheduled later this week.
With that in mind, the astronauts today took out a pry bar and forceps from an outdoor tool box for possible use during shuttle repair. It took both of them to force open the box.
In 24 years of shuttle flight, astronauts have made few shuttle repairs, and have never ventured out beneath the spacecraft during orbit.
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