
Striking a pose in front of St. Basil’s Cathedral at Red Square in Moscow, Expedition 39/40 crewmembers Steve Swanson of…

A photograph from a live television transmission from Apollo 9. This view shows the interior of the Lunar Module "Spider"…

The Bell X-2 was a rocket-powered, swept-wing research aircraft designed to investigate the structural effects of aerodynamic heating as well…

Mars’ northern-most sand dunes are beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare…

NASA's THEMIS mission observed how dense particles normally near Earth in a layer of the uppermost atmosphere called the plasmasphere…

An illustration of Earth's magnetic field showing the location of the plasmasphere.

This graphic depicts the passage of asteroid 2014 EC past Earth on March 6, 2014.

APOD Science APOD APOD: 2014 March 6… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD…

At the Gagarin Cosmonaut Training Center in Star City, Russia, flight instructors monitor the progress of qualification exams for the…

At the Gagarin Cosmonaut Training Center in Star City, Russia, a flight instructor monitors the progress of qualification exams for…