
In the early 1960s, Richard T. Whitcomb, chief of the Transonic Aerodynamics Branch, Langley Research Center, Hampton, VA, conducted exploratory…

An annotated image of Pluto indicates features and includes a reference globe showing Pluto’s orientation with the equator and central…

Tantalizing signs of geology on Pluto are revealed in this image from New Horizons taken on July 9, 2015 from…

Expedition 44/45 crew members at the Gagarin Cosmonaut Training Center in Star City, Russia.

Expedition 44/45 backup crew members at the Gagarin Cosmonaut Training Center in Star City, Russia.

Expedition 44/45 prime crew members at the Gagarin Cosmonaut Training Center in Star City, Russia.

Expedition 44/45 prime crew members at the Gagarin Cosmonaut Training Center in Star City, Russia.

Expedition 44/45 crew member Kjell Lindgren of NASA at the Gagarin Cosmonaut Training Center in Star City, Russia.

Expedition 44/45 prime and backup crew members pose for pictures in the Gagarin Museum July 8.

Expedition 44/45 prime crew member Kimiya Yui of the Japan Aerospace Exploration Agency signs a ceremonial book.