Christina Hammock Koch is an American engineer and NASA astronaut of the class of 2013. After setting a record for the longest single spaceflight in history by a woman, NASA astronaut Christina Koch returned to Earth on Feb 6, 2020.
Christina started to space in March 2019 alongside European astronaut Luca Parmitano and Russian cosmonaut Alexander Skvortsov. During the 11 month mission, Koch performed various experiments including studying the effects of microgravity on Mizuna mustard greens, combustion, bioprinting, and kidney diseases. In addition, Koch herself was a research subject to determine the long-term effects of spaceflight on the human body.
Christina Koch’s first journey into space of 328 days is the second-longest single spaceflight by a US astronaut and also places her seventh on the list of cumulative time in space for American astronauts with one or more missions. And Koch didn’t just break one US record this year: During the mission in October 2019, Koch and NASA astronaut Jessica Meir performed and completed the first ever spacewalk performed by two women.
Christina Koch set a record for the longest single spaceflight by a woman — 328 days — in a mission on the orbiting laboratory that spanned 5,248 orbits of the Earth and 22,36,99,000 km approximately. The mission is roughly the equivalent of 291 round trips to the Moon. Christina Koch performed six spacewalks during her mission and saw the arrival of a dozen visiting vehicles and the departure of a dozen spacecraft.