Feature
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Materials ScienceSavvy Skins
Researchers are developing new coatings that incorporate multiple functions, offer chemical reactivity, or act in response to stimuli in the environment.
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EarthSudden Chill
Today's combination of nuclear proliferation, political instability, and urban demographics increases the likelihood that humankind could suffer a devastating nuclear winter.
By Sid Perkins -
EarthAquatic Non-Scents
Many common pollutants appear to be jeopardizing the survival of fish and other aquatic species by blunting their sense of smell.
By Janet Raloff -
Perchance to Hibernate
As scientists work to unravel the secrets of mammalian hibernation, they're eyeing medical applications that could aid wounded soldiers, stroke victims, and transplant recipients, among others.