Image Article

Expedition 54-55 prime crew members pose for pictures Nov. 29 in front of a Soyuz spacecraft simulator as part of…

Expedition 54-55 prime crewmember Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos) disconnects a cooling system hose as he…

Technicians practice operations with the RS-25 pathfinder engine that recently arrived at NASA's Michoud Assembly Facility in New Orleans.

Ash from Mount Agung on the Indonesian island of Bali was visible in imagery from NASA’s Terra satellite.

Expedition 54-55 backup crew members answer reporters’ questions Nov. 28 as part of their final qualification exam activities.

Expedition 54-55 backup crew members answer reporters’ questions Nov. 28 as part of their final qualification exam activities.

Expedition 54-55 prime crew members pose for pictures Nov. 28 as part of the crew’s final qualification exam activities.

Expedition 54-55 prime crew members pose for pictures Nov. 28 as part of the crew’s final qualification exam activities.

STS-9 launched aboard the space shuttle Columbia from NASA’s Kennedy Space Center carrying the first Spacelab mission. On board the…

This image from NASA's Mars Reconnaissance Orbiter (MRO) captures details of an approximately 1-kilometer inverted crater west of Mawrth Vallis.