John Glenn, 1st American to orbit Earth, has heart valve replaced ahead of his 93rd birthday
Oil boom produces rare jobs bonanza for archaeologists to survey sites ahead of development
HEALTHBEAT: Scientists seeking healthy seniors at risk of Alzheimer's in bid to thwart disease
Dow, Nature Conservancy want to use trees, reforested land to clean industrial air pollution
Companies, farmers collaborate on projects to improve water quality, soil erosion
Scientists are working to improve tornado forecasting as a way to help save lives and give more notice to emergency responders.
Anchor pulled from Puget Sound might be from 1792 expedition by British explorer Vancouver
Florida's top GOP politicians question climate change as other coastal states take action
Sheriff says cause of Black Forest Fire, Colorado's most destructive, might never be known
In grand tombs and moving memorials, Italy honors centuries of artists
Rural clinics turn to telemedicine to bridge distance between emergency patients and hospitals
Brewers have pulled yeast from pretty much everywhere to experiment with new strains — one West Coast brewery even brewed a beer using samples from the head brewer's beard— but Lost Rhino in Ashburn may be breaking into new territory with its BoneDusters amber ale.
Safety board: Equipment in BP oil rig had multiple failures, may still be issue for some rigs
Moon rocks indicate collision resulted in Earth's orbiting companion 4.5 billion years ago
World's oldest man, a retired chemist and parapsychologist, dies in NYC at age 111
Paul Maher didn't take care of himself, but he didn't think he'd have a heart attack so soon.
Dragon fish, chocolate-colored frog, ginger plants among new species identified in Myanmar
Inner-city boys school that beat odds celebrates first college graduates
California wildlife officials add gray wolf to endangered list; fledgling pack found in Oregon
Large Minnesota crude oil spill of 1979 still produces significant discoveries for scientists
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