News
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HumansFood security wanes as world warms
Global warming may have begun outpacing the ability of farmers to adapt, new studies report.
By Janet Raloff -
SpaceIt’s really full of stars
Astronomers find such an abundance of red dwarfs in eight nearby galaxies that they suggest the stellar population of the universe may be three times current estimates.
By Ron Cowen -
LifeDieting may plant seeds of weight regain
Cutting calories causes changes in the brains of mice that appear to encourage binge eating under stressful conditions years later.
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ChemistrySnot has the power to alter scents
Enzymes in mice's nasal mucus can alter certain odors before the nose can detect them, a new study finds.