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The U.S. Air Force may in December certify the start-up rocket-maker SpaceX to compete to launch military and spy satellites.

A proposed U.S. rocket engine could replace the Russian technology found on many American military boosters.

The entire F-35 fleet has been grounded since July 3 following a June 23 engine fire.

Sikorsky Aircraft Corp. has won an Air Force contract to begin developing the service's next-generation combat rescue...

Anyone looking for a better appreciation of the military engineering marvels behind D-Day should watch Nova's "D-Day's Sunken...

"You'll be able to land anywhere on Earth with the accuracy of a helicopter," Elon Musk said.

Russia has amassed as many as 40,000 troops and dozens of fighter jets, helicopters, tanks and armored vehicles near Ukraine.

The F-35 is a "flying computer," with 24 million lines of software code.

Russia's latest version of the Sukhoi T-50 fighter jet recently arrived at a test base outside Moscow.

The U.S. Air Force plans to re-balance its approach to Intelligence, Surveillance and Reconnaissance.