Smart Living Astronaut to eclipse record for longest US spaceflight by a woman Updated : April 21, 2019 08:15 PM IST Astronaut Christina Koch, who completed the spacewalk with a man instead of a female colleague last month, will remain in orbit on board the International Space Station until February. Astronaut Peggy Whitson holds the record for the longest single spaceflight by a woman, staying in orbit 288 days in 2016 and 2017. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.