Mission Specialists Randy Bresnik and Robert Satcher Jr. wrapped up a 5-hour, 42-minute spacewalk at 2:06 p.m. EST. During this third and final STS-129 spacewalk, the two astronauts transferred an oxygen filled High Pressure Gas Tank (HPGT) from the EXPRESS Logistics Carrier 2, or ELC2, located on the starboard truss, to a spot on the outside of the Quest Airlock. The tank will be used to replenish atmosphere lost when spacewalkers enter and exit the station.

While Satcher completed installation of the HPGT, Bresnik installed the seventh Materials International Space Station Experiment, or MISSE 7. This is the most advanced of the MISSE payloads to date and will be the first to receive power directly from the station and use the station's communication system to send commands and downlink real-time data.

This was the final STS-129 spacewalk, the 230th conducted by U.S. astronauts, and the second for both Satcher and Bresnik. It was the 136th in support of International Space Station assembly and maintenance, totaling 849 hours, 18 minutes. It was the 108th spacewalk out of the space station, totaling 662 hours, 3 minutes.

The three STS-129 spacewalks totaled 18 hours, 27 minutes. Mike Foreman now has completed five spacewalks between STS-123 and STS-129 totaling 32 hours, 19 minutes and placing him 28th on the all-time list. Satcher's two spacewalks totaled 12 hours, 19 minutes. Bresnik's two spacewalks totaled 11 hours, 50 minutes.

At the conclusion of the spacewalk, Bresnik thanked everyone for their support and commented, "I got to see my little girl for the first time yesterday, and I know there was many myriad of people across a lot of disciplines at JSC and the hospital staff that worked to make that happen."

On Sunday, Bresnik told the flight controllers his new daughter, Abigail Mae Bresnik, had been born in Houston at 11:04 p.m. CST Saturday. He said his wife Rebecca and new daughter, 6 pounds, 13 ounces and 20 inches long, were doing well. Bresnik got the news by private phone patch through mission control shortly after the crew was awakened.

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