Follow along here for live updates, highlights, preview and more for the 126th rendition of the Army-Navy game.

In 2008, a team of UCLA-led scientists proposed a scheme to use a laser to excite the nucleus of thorium atoms to realize extremely accurate, portable clocks. Last year, they realized this ...

An eyewitness account of the first atomic bomb tests in the Marshall Islands, along with some remarkably prescient observations about what they could mean for future superpower rivalries.

The office hours are part of Secretary Phelan's plan to avoid the problems that led to the cancellation of the ...

Live updates from Tuesday's SpaceX NROL-77 national security mission that launched a Falcon 9 rocket from Cape Canaveral ...