Record-breaking astronaut Peggy Whitson returns to EarthPublished3 September 2017Image source, SERGEI ILNITSKY/AFP/Getty ImagesImage caption, Peggy Whitson (left) landed back on Earth with fellow US astronaut Jack Fischer (right) and Russian cosmonaut Fyodor Yurchikhin (centre) on 3 September 2017. They were carrying out scientific investigations on board the International Space Station.Image source, SERGEI ILNITSKY/AFP/Getty ImagesImage caption, The station鈥檚 newest commander, Randy Bresnik, called Peggy an 鈥淎merican space ninja鈥. So far in her career, she's spent a grand total of 665 days in space - that's longer than any other American or female astronaut! And it's not the only record she's broken...Image source, ReutersImage caption, Peggy is the most experienced female space walker. During her third mission, she increased her number of space walks from eight to ten.Image source, KIRILL KUDRYAVTSEV/AFP/Getty ImagesImage caption, On 18 November 2016, Peggy blasted off to the ISS on board Russia's Soyuz MS-03 spacecraft, becoming the oldest woman to enter space.Image source, NATALIA KOLESNIKOVA/AFP/Getty ImagesImage caption, Her first mission was back in 2002. Here she is waving goodbye in 2007, ready to embark on her second mission. Peggy became the first woman to command the ISS during this mission.Image source, SERGEI ILNITSKY/AFP/Getty ImagesImage caption, Peggy says her third mission hurried by. She's now hungry for pizza and can't wait to use a regular flush toilet again!More on this storySpace prank on the ISSPublished14 February 2017Nasa astronaut breaks space recordPublished7 September 2016What does it take to be an astronaut?Published6 November 2015First Russian woman in ISS mission. Video, 00:00:59First Russian woman in ISS missionPublished27 September 20140:59