
Former NASA astronaut Thomas Stafford (left) and former Russian cosmonaut Alexey Leonov (right) answer reporters’ questions.

Former NASA astronaut Thomas Stafford practices docking techniques at a simulator.

Former Russian cosmonaut Alexey Leonov and former NASA astronaut Thomas Stafford relive historic moments.

The first test of a DFBW system in an aircraft was in l972 on a modified F-8 Crusader at the…

NASA Administrator Charles Bolden is seen during a New Horizons media briefing where new images and science findings collected by…

In auto racing parlance, NASA engineers put the “pedal to the metal” during a July 17 test of its Space…

SDO sees a whole series of loops towered above a group of active regions over a five-days period on July…

On July 16, 2015, Agriculture Deputy Secretary Krysta Harden and NASA Deputy Administrator Dava Newman announced an expanded partnership between…

The latest two full-frame images of Pluto and Charon were collected separately by New Horizons during approach on July 13…