The second of five spacewalks planned during shuttle Discovery's mission to the International Space Station now is in the history books.
Discovery mission specialist Scott Parazynski and station flight engineer Dan Tani exited the U.S. Quest airlock at 5:32 a.m. EDT and then climbed back into the tunnel-like crew lock of the compartment at 11:05 a.m.
The official duration of the excursion: six hours, 33 minutes. Total time tallied during the first two spacewalks: 12 hours, 47 minutes.
The spacewalk was the 94th carried out since the first two station building blocks were linked in orbit in late 1998. To date, astronauts and cosmonauts have spent 581 hours and 47 minutes performing spacewalking assembly and maintenance work at the outpost.
The spacewalk was the fifth for Parazynski. He has now tallied 32 hours and 38 minutes working in the airless vacuum in low Earth orbit.
Tani now has two career spacewalks. His total Extra Vehicular Activity: 10 hours and 45 minutes.
Three more spacewalks are planned for the mission. Parazynski and Discovery mission specialist Douglas Wheelock are on tap for the next one on Tuesday. The scheduled start time: 5:28 a.m. EDT that day.
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