NASA astronaut Christina Koch has returned to Earth on Feb. 6 after spending 328 days on the International Space Station — a new record for the longest single spaceflight by a woman.

After almost a year in space, Koch has conducted numerous science experiments on the orbiting lab, including studying the effects of microgravity on Mizuna mustard greens, combustion, bioprinting and kidney diseases. 

In addition to her science experiments on the space station, Koch's extended mission will allow researchers to study the effects of long-duration spaceflight on a woman. This research will benefit future missions to the moon under the Artemis program and Mars. 

Here's a look at Koch's record-setting mission in science photos.