
Expedition 59 crew member Christina Koch of NASA listens to a reporter’s question Feb. 21 during a pre-launch news conference.

Expedition 59 crew member Nick Hague of NASA answers a reporter’s question Feb. 21 during a pre-launch news conference.

NASA’s new deep space rocket, the Space Launch System, will feature a 212-foot-tall core stage, making it the largest rocket…

Expedition 59 crew members Christina Koch of NASA (left), Alexey Ovchinin of Roscosmos (center) and Nick Hague of NASA (right)…

Expedition 59 crew members Christina Koch of NASA (front, left), Alexey Ovchinin of Roscosmos (front, center) and Nick Hague of…

Expedition 59 crew member Nick Hague of NASA (front, right) signs a ceremonial book Feb. 21 as part of the…

Expedition 59 crew member Christina Koch of NASA (front, left) signs a ceremonial book Feb. 21 as part of the…

Expedition 59 backup crew member Drew Morgan of NASA (front, left) signs a ceremonial book Feb. 21.

Expedition 59 crew members Christina Koch of NASA (left), Alexey Ovchinin of Roscosmos (center) and Nick Hague of NASA (right)…

NASA’s Expedition 59 astronauts Christina Koch (left) and Nick Hague (right) study a framed drawing of a Soyuz rocket Feb.…