Based on data from NASA's Voyager 2 flyby in 1986 and decades of modeling, scientists expected the trailing hemispheres of ...

U.S. Army Sec. Dan Driscoll explains efforts to modernize warfare capabilities and discusses President Donald Trump's remarks ...

What exactly separates Tier 1 from Tier 2 in America’s elite forces? This video explores the structure behind the military’s ...

Instead, they found no evidence for darkening on the moons’ trailing sides, and clear evidence for darkening of the leading ...