A spinoff from the Rocky Mountain Institute has developed a 100-miles-per-gallon plug-in hybrid.
Flexible carbon-nanotube supercapacitors could give more power to cell phones and other electronics.
Research may be needed to evaluate alternatives to reducing greenhouse-gas emissions.
A new lithium-ion battery from A123 Systems could help electric cars and hybrids come to dominate the roads.
Textiles coated with carbon nanotubes form electronic sensors that look and feel like ordinary cotton.
How promoting renewable-energy technologies will help the economy.
New publications, experiments and breakthroughs in materials science--and what they mean.