News
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PhysicsTerrific Timekeeper: Optical atomic clock beats world standard
An innovative atomic clock is more precise than the breed of clocks that's been the best for 50 years.
By Peter Weiss -
EarthGlobal warming heats up nursery of hurricanes
Sea-surface temperatures in the North Atlantic Ocean reached record highs last year.
By Sid Perkins -
EarthAlaskan coral beds get new protection
To protect cold-water corals, huge areas of Alaskan waters will be off limits to trawls and other fishing gear that typically scrape the seafloor.
By Janet Raloff -
Health & MedicineIngredient might prevent sexually transmitted disease
A seaweed derivative that's commonly added to many consumer products as a thickening agent can inhibit the virus that causes cervical cancer and genital warts.