After spending nearly 7 months in zero gravity, astronaut Sunita Williams overcame the challenge of re-learning to walk, then set a record with a 5.5-hour spacewalk. Along with Butch Willmore, Williams smashed Peggy Whitson's record for total spacewalk time at the International Space Station and conducted vital experiments on microbial survival in space.

During a five-and-a-half hour spacewalk with her colleague Butch Wilmore, Sunita Williams surpassed former astronaut Peggy Whitson’s total spacewalking time of 60 hours and 21 minutes.

NASA astronaut Sunita Williams has recently set a remarkable record during her extended mission aboard the International Space Station (ISS). The spacewalk was filled with significant achievements, including the removal of crucial radio communications hardware and the collection of microbial life samples from the ISS's exterior.

NASA astronaut Sunita Williams made history on Thursday, by surpassing the record for the most time spent in the vacuum of space by a woman. During a 5-hour and 26-minute spacewalk outside the International Space Station,

NASA astronaut Sunita Williams and Butch Wilmore on Thursday stepped out of the International Space Station (ISS) for 5.5-hour spacewalk, setting a new record, the US space agency said.

NASA astronaut Sunita Williams broke the record for the most time spent in space by a woman, logging 62 hours and 6 minutes of spacewalking, on January 30. During a five-and-a-half-hour spacewalk with colleague Butch Wilmore,

Nasa astronauts Sunita Williams and Butch Wilmore completed a record-setting 5.5-hour spacewalk outside the ISS, adding to Williams' impressive achiev

This story incorporates reporting from Yahoo, Space on MSN.com and MSN.NASA astronaut Suni Williams set a new record with a recent 5.5-hour spacewalk outside the International Space Station (ISS). Williams,