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AstronomyPay Dirt: Cometary dust collector comes home
A capsule containing dust collected from the comet Wild-2 safely landed in the Utah desert.
By Ron Cowen -
Intrinsic Remedies for Pain: Placebo effect may take various paths in brain
The brain draws on a range of pain-fighting options when people receive sham treatments for pain.
By Bruce Bower -
EarthDiabetes from a Plastic? Estrogen mimic provokes insulin resistance
Exposure to trace amounts of an estrogenlike ingredient of polycarbonate plastic may increase the risk of diabetes, experiments in mice show.
By Ben Harder -
Dieting to Save a Species: Mother parrots that eat less avoid excess of sons
New Zealand's endangered, flightless parrot population is recovering from a shortage of daughters now that conservationists are counting calories for the mothers.