Specialists help NASA astronaut Christina Koch shortly after landing of the Russian Soyuz MS-13 space capsule in a remote area southeast of Zhezkazgan in the Karaganda region of Kazakhstan, February 6, 2020. Sergei Ilnitsky/Pool via REUTERS TPX IMAGES OF THE DAY 

The International Space Station (ISS) crew member Christina Koch of the U.S. smiles after donning space suit check shortly before launch at the Baikonur Cosmodrome, Kazakhstan March 14, 2019. REUTERS/Shamil Zhumatov 

Photographers take pictures as the Soyuz MS-12 spacecraft carrying the crew formed of Aleksey Ovchinin of Russia, Nick Hague and Christina Koch of the U.S. blasts off to the International Space Station (ISS) from the launchpad at the Baikonur Cosmodrome, Kazakhstan March 15, 2019. REUTERS/Shamil Zhumatov TPX IMAGES OF THE DAY 

The International Space Station (ISS) crew member Christina Koch of the U.S. reacts in a bus before leaving for pre-flight preparation at the Baikonur Cosmodrome, Kazakhstan March 14, 2019. REUTERS/Shamil Zhumatov TPX IMAGES OF THE DAY