The need is growing fast for economical, large-scale backup systems to provide power when the sun is down and the air is calm.

Researchers have developed a new kind of battery, made entirely from abundant and inexpensive materials, that could help to fill that gap.

As the world builds out ever larger installations of wind and solar power systems, the need is growing fast for economical batteries.

Made from inexpensive, abundant materials, an aluminum-sulfur battery could provide low-cost backup storage for renewable energy sources.

They are showing off an adaptive heat-managing composite material they helped develop that is nicknamed after its inspiration: squid skin.

According to the World Health Organization (WHO), at least 1.8 billion people consume water contaminated with feces.

Researchers have developed an ultra-high material efficient solar cell using semiconductor nanowires.