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The polar vortex, a swirl of low-pressure air six miles up in the atmosphere, blasted much of the American Midwest and Northeast in late January 2019 with temperatures cold enough to bring on frostbite within minutes.

A study led by researchers at the University of Southampton reveals huge variations in the similarity and breadth of animal roles in nature across different parts of the world.

Green plants capture light that spans the visible solar spectrum, and while a broad spectral range is required for sufficient absorption, the process requires energy to be funneled rapidly and efficiently downhill to drive charge separation and water splitting.

Scientists have discovered a new process to make polymers out of sulfur which could provide a way of making plastic that is less harmful to the environment.

Perovskites — a broad category of compounds that share a certain crystal structure — have attracted a great deal of attention as potential new solar-cell materials because of their low cost, flexibility, and relatively easy manufacturing process.