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Panasonic's 3.1Ah batteries to be used in the Tesla Model S, have highest energy density yet

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The Strange Link Between Spherium and Helium

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Magnesium: Alternative Power Source

DARPA's Mach 20 Hypersonic Glider and Air Force's X-37B Space Plane Make Their Debuts

U.S. Resists Push by Allies for Tactical Nuclear Cuts

Boston Dynamics Biped Robot Petman Achieves 4.4 mph

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US Army strategy spurs debate on optionally piloted vehicles

Navy Green Hornet goes supersonic with biofuel

USAF Plans For Reusable Booster Development

U.S. Army Asks to Cancel NLOS-LS