A prototype hybrid quadcopter can fly several times farther than conventional battery-powered ones.
A startup’s version of 3-D printing is faster and cheaper (and makes better objects).
A startup with radical new battery technology gets a vote of confidence from an appliance maker.
A miniature electrical propulsion system could let small satellites fly in formation for cheaper imaging.
An innovative startup that blends solar energy and battery storage reflects broader interest combining the technologies.
Researchers have demonstrated a long-lasting device for making hydrogen from sunlight and water—but funding is running out.
A startup called Voxel8 is using materials expertise to extend the capabilities of 3-D printing.
A new process could extend the use of titanium for lightweight, more fuel-efficient airplanes.
Startup aims to give mobile devices the power to display full-color holographic images and video.
Nanostructured sheets of silicon can bend light in unusual ways, eliminating the need for bulky lenses.