Here's why the naval maneuver is so tricky.
At some point in the next few weeks, the U.S. plans to fire an extreme, hypersonic weapon. The question remains: What's the point?
The U.S. government is putting something big and secret in orbit tonight (Sept 30). Here's the little we can glean from public information.
A secret U.S. Army tactical unit called the "Ghost Army" tricked German forces during WWII with fake military displays that were deceptively real.
The U.S. government says Russia tested an anti-satellite space weapon July 15. Russia says it was an inspector satellite. Nothing was destroyed.
The US Senate intelligence committee plans to impose new rules on how the Department of Defense (DOD) shares information about UFOs, and to demand a public report on what the DOD knows so far.
Aerojet Rocketdyne will develop "enabling technologies" for DARPA's Glide Breaker program under a newly announced contract, which is worth up to $19.6 million.
During a pivotal World War II battle, three U.S. aircraft and their seven crewmen were lost at sea. The planes were recently located in a lagoon in the Pacific Ocean.
Heartbeat-scanning lasers created by the U.S. military can ID your cardiac 'fingerprints' from hundreds of feet away.
Historians recently uncovered the name of a fourth spy who delivered U.S. atomic secrets to the Soviets in the 1940s.
This Navy craft is meant to communicate with nuclear forces in the event of a nuclear war. And a bird strike just grounded it.
China already had the power to kill you with nukes. This doesn't change anything, but it could fan the flames of an arms race.
The robotic X-37B has been circling Earth for nearly 719 days on its latest mystery mission, which is known as Orbital Test Vehicle 5 (OTV-5).
The United States Space Command will officially be up and running by the end of the month, Vice President Mike Pence said today (Aug. 20) at a meeting of the National Space Council.
DARPA hopes to invent ways to instantly read soldiers' minds using tools like genetic engineering of the human brain, nanotechnology and infrared beams.