The United States Army has quietly crossed a major threshold in its armored modernization, taking possession of its first ...

At the PARI Hypersonics Advanced Manufacturing Technology Center (HAMTC), from left: Nate Humbert, lead additive manufacturing engineer, GE Additive; Will DeVerter, aeronautics and astronautics ...

Opinions expressed by Entrepreneur contributors are their own. Amazon Fire Phone, Google Glass, New Coke and Nintendo’s Virtual Boy: What do all these products have in common? They didn’t sell.

Start-up Archer Aviation has finished assembling a prototype of its in-development electric air taxi Midnight and aims to begin flight testing the aircraft this summer. The prototype is not, however, ...