NASA Astronaut Peggy Whitson has broken the record for cumulative time in space by an American astronaut. Early Monday morning, Whitson marked her 535th cumulative day in space, becoming the first U.S. astronaut to hold the record. Whitson is currently on her third long-duration mission to the International Space Station.
* the first woman to command the International Space Station, which she has done twice
* the record-holder for most cumulative time spent spacewalking by a woman (she’s completed eight space walks)
* number five on the all-time space walking list
In response to her latest achievement, Whitson tweeted her gratitude to those who had helped throughout her career.