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Health & MedicineImmune cells rush to gut in food allergy
In mice, allergic reactions to food coincide with an accumulation of white blood cells called eosinophils in the small intestine.
By Nathan Seppa -
TechOptical biopsy hunts would-be cancers
A new optical tool allows physicians to scout for precancerous tissue by analyzing the fluorescent responses of cells when light is shone on them.
By Janet Raloff -
AstronomyA comet’s odd orbit hints at hidden planet
Far beyond the solar system's nine known planets, a body as massive as Mars may once have been part of our planetary system, and it might still be there.
By Ron Cowen -
Fungi slay insects and feed host plants
Researchers are discovering that some plants get their nutrients by robbing nitrogen from the flesh of soil-dwelling insects.