Peggy Whitson also holds the title of first woman commander of the International Space Station.
NASA astronaut Peggy Whitson broke a record Thursday by making the eighth spacewalk of her career — putting her number of spacewalking hours higher than any other woman astronaut.
Whitson, 57, is considered the oldest and most experienced woman astronaut in history, the Associated Press reported.
She completed the walk with her partner, current Space Station commander Shane Kimbrough, as they were preparing a docking station at the International Space Station where they reside. Whitson has been in orbit on the station since November 2016.
Whitson is expected to beat the cumulative spacewalk time of Sunita Williams' 50 hours and 40 minutes, CBS News reported. Whitson also served as the first female commander of the space station, fulfilling the role in 2008.
This latest space walk will put Whitson at number three on the overall list of longest cumulative time spent on spacewalks. Anatoly Solovyev holds the number one spot with 68 hours, and former astronaut Mike Lopez-Alegria is at number two with 67 hours, according to the same CBS News report.