Nuclear microreactors developed separately by Westinghouse and Radiant are poised to become the first fueled designs tested ...

The 156-foot-long five-segment solid rocket motor produced upwards of 4 million pounds of thrust during the test.

A DARPA official said the agency canceled a space nuclear propulsion project it was jointly developing with NASA as it was ...

A new material developed at Penn State defies a fundamental law of physics, opening doors to highly efficient solar cells.

Scientists have proposed two experimental spacecraft that could reach one of the farthest known objects in the solar system ...

Seventy years ago, on September 17, 1955, a modified Convair B-36 departed Carswell Air Force Base in Texas. Legendary U.S.

In the 1950s, the U.S. began focusing on nuclear propulsion as an effective way to power space exploration with projects ...