NASA astronaut Kate Rubins waters a tree.
Cosmonaut Sergey Ryzhikov waters a tree.
Expedition 64 crew members pose for a picture.
Cosmonaut Sergey Kud-Sverchkov plants a tree.
Cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov take part in tilt table training,
Cosmonaut Sergey Kud-Sverchkov during spin chair training.
Cosmonaut Sergey Ryzhikov during spin chair training.
Expedition 64 backup and prime crew members
Expedition 64 backup crew member Mark Vande Hei of NASA.
The Cygnus space freighter in the grips of the Canadarm2 robotic arm.
