Whitson spent 288 days, nearly nine and a half months, aboard the International Space Station. This coupled with her previous missions means that she has spent the longest amount of time — 665 days — any American or woman has ever spent in space.
At 57 years old, Whitson is also the oldest female astronaut.
— NASA (@NASA) September 3, 2017
She also broke records by conducting ten space walks, the most any woman has conducted, and becoming the first woman to command a space station twice.