
Expedition 63 prime and backup crewmembers raise the Russian, U.S. and Kazakh flags March 26 in a traditional ceremony.

Cosmonaut Yuri Malenchenko presides over the traditional flag-raising ceremony March 26 as part of pre-launch activities for the Expedition 63…

Expedition 63 prime and backup crewmembers raise the Russian, U.S. and Kazakh flags March 26 in a traditional ceremony.

Expedition 63 prime and backup crewmembers raise the Russian, U.S. and Kazakh flags March 26 in a traditional ceremony.

Expedition 63 prime and backup crews attend the traditional flag raising ceremony March 26 as part of their pre-launch activities.

NASA astronaut and Expedition 62 Flight Engineer Andrew Morgan retrieves gut microbe samples.

NASA astronaut and Expedition 62 Flight Engineer Jessica Meir works on the Major Constituent Analyzer, a device that measures the…

NASA astronaut and Expedition 62 Flight Engineer Jessica Meir works on the Major Constituent Analyzer, a device that measures the…

NASA astronaut and Expedition 62 Flight Engineer Andrew Morgan retrieves gut microbe samples from a science freezer.

This photograph shows ripples in the surface of Denman Glacier in East Antarctica that throw shadows against the ice.