NASA astronaut Christina Koch set a new record for the longest spaceflight by a woman on Saturday, when she broke former NASA astronaut Peggy Whitson’s record of 288 days. 

NDTV

Christina, who is expected to return on February 2020, was originally supposed to be on a six-month mission at the International Space Station. However, as per NDTV, NASA extended her stay partly to collect more data about the effects of long-duration spaceflight.

Independent

Once she returns, she would have spent over 300 days in space. At 340 days, former astronaut Scott Kelly currently holds the record for the longest spaceflight by a NASA astronaut.