News
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PhysicsLight pulse hovers in atom capsule
A new way to freeze light pulses in midflight preserves the pulses' optical energy and may eventually lead to using stationary light in optical circuits and quantum computers.
By Peter Weiss -
Human genes take evolutionary turns
Researchers have identified a set of genes that has evolved an extensive pattern of alterations unique to people.
By Bruce Bower -
EarthThis pollutant fights lupus
A hormone-mimicking pollutant that leaches out of some plastics appears to fight lupus.
By Janet Raloff -
Health & MedicineCould refrigeration explain Crohn’s rise?
Crohn's disease, marked by inflammation of the small intestine, could be caused by refrigeration of meats, a process that selects for hardy bacteria that handle cold temperatures well, researchers hypothesize.