Whitson set the record for the most cumulative time in space on April 24, 2017.
On April 24, 2017, during her Expedition 50/51 mission, Peggy Whitson broke the NASA record for the most cumulative time spent in space by any American astronaut and any woman, reaching 534 days and ultimately achieving a total of 665 days. This record drew attention to Whitson's dedication, stamina, and significant contributions to human spaceflight. Her pioneering achievements not only elevated her status in the annals of space history but also paved the way for future astronauts by demonstrating the potential for extended periods of human existence in space.