
A crate containing one of the twin Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) satellites.

NASA engineers capped a year of Space Launch System testing with a final RS-25 rocket engine hot fire on Dec.…

The huge amounts of smoke tumbling off the coast of California is also an indicator of how active the Thomas…

Expedition 54-55 prime crewmembers display souvenir “launch keys" during traditional pre-flight ceremonies Dec. 13.

Expedition 54-55 prime crew members answer reporters’ questions in front of the Soyuz MS-07 spacecraft Dec. 13 at the conclusion…

Expedition 54-55 prime crew members pose for pictures Dec. 13 in front of the first stage of the Soyuz booster…

Expedition 54-55 prime crew members pose for pictures Dec. 13 in front of the Soyuz MS-07 spacecraft during pre-launch training.

Expedition 54-55 prime crew members walk from their Soyuz MS-07 spacecraft Dec. 13 at the conclusion of a second dress…

This image from NASA's Mars Reconnaissance Orbiter (MRO) of northern Meridiani Planum shows faults that have disrupted layered deposits.

This week in 1993, STS-61 mission was completed as the space shuttle Endeavour landed at NASA’s Kennedy Space Center following…