Once the rising star of the clean-tech industry, the advanced battery maker faces an uncertain future.
Large sheets made from carbon nanotubes could lead to lighter aircraft and more resilient space probes.
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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.
The chemical company BASF says the basic type of battery used now in hybrids could be improved tenfold, leading to cheaper electric cars.
A Caltech scientist creates tiny lattices with enormous potential.
Availability: 3-5 years
Advanced genetic tools could help boost crop yields and feed billions more people.
Availability: 10-15 years
A new way to produce metals could have wide-ranging effects.
Advanced manufacturing technologies are leading to smaller jet engines.
The quickest way to solve a maze exploits both quantum and classical processes, say physicists who have demonstrated the effect for the first time.
A startup called SolidEnergy has developed a kind of lithium-ion battery that stores far more energy.