Weather permitting, a "blood moon" eclipse — the penultimate in a four-eclipse cycle — can be seen in its totality by those living on the U.S West Coast.
Would you kill a young Hitler to prevent World War II? Men are more likely to say yes, a study finds, while women weigh the moral cost of murder along with lives saved.
Travelers are bringing a nasty bacterial disease to the U.S. and spreading it to others. The bacteria cause bad diarrhea and are tough to treat because they're resistant to the top antibiotic.
Scientists say they've identified the bacteria that emit that rank smell after a hard workout. Future deodorants might target that bad actor rather than blocking sweat glands or nuking all bacteria.
The product is called snus — a tiny bag of smokeless tobacco that users slip between the lip and gum. A Swedish maker claims the product is safer than cigarettes, cigars and chewing tobacco.
Current tests require growing anthrax in the lab, which isn't the best option for labs in Afghanistan. So engineers have come up with a credit-card-size test that could make the world a safer place.
The case of co-pilot Andreas Lubitz has focused attention on what Lufthansa, or any employer, can really know about an employee's state of mind. Requiring a psychological evaluation has risks, too.
Only about half of Medicare patients are told of the diagnosis by their doctor, a study finds. That compares to 90 percent of patients diagnosed with cancer.
The hormone that controls blood sugar among diabetics is one of the oldest medicines used today. But more than 90 years after its discovery, a low-cost version is no longer available in the U.S.
Clinicians correctly predict a suicide attempt about half the time — no better than a coin toss. Certain tests of involuntary responses, although still experimental, aim to improve the odds.