News
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AstronomyVanishing planet
An object orbiting a distant star is too heavy to be a planet, researchers have concluded.
By Ron Cowen -
AstronomyExtrasolar planet gets heavier
An extrasolar planet that tightly orbits its parent star is heavier than astronomers had thought.
By Ron Cowen -
Health & MedicineTreatment helps newborns avoid HIV
Giving healthy newborns whose mothers are infected with HIV a combination of anti-HIV drugs shortly after birth makes the infants less likely to contract the virus through breastfeeding.
By Nathan Seppa -
TechSweet-toothed microbe tapped for power
Using a newly discovered bacterium that both frees electrons from sugars and injects those charges straight into electric circuits, scientists have created a fuel cell that converts carbohydrates to electricity with extraordinary efficiency.