Post-traumatic stress disorder, or PTSD, is a condition closely associated with the battlefield. But Michael Ferrara developed PTSD without going to war -- he spent three decades living and saving lives in Aspen, Colo.
The U.S. has just received its first shipment of molybdenum-99, an essential material for medical imaging that's being mass-produced for the first time with low-enriched uranium instead of weapons-grade material.
The number of Americans who believe that global warming is a scientific fact has been dropping, and environmental groups and climate scientists who say the evidence for warming is clear are scratching their heads over this reversal and scrambling to find a new strategy.Three years ago, former Vice P
It's a provocative -- even astonishing -- hypothesis: Could the same set of genes that explains why chimpanzees are protected from some diseases also explain why humans have big brains?That's what researchers at Stanford University are suggesting.The genes in question control a type of white blood c