Women should exercise an hour a day to maintain weight, study says

Gloria Hale rose at 5:30 a.m. Tuesday, as usual, to swim laps before work. Active though she is, however, the 55-year-old Orange County...

Robert M. White dies at 85; pilot made history with 1962 test flight into space

Robert M. White was a 38-year-old U.S. Air Force major and record-setting test pilot at Edwards Air Force Base in 1962 when he joined the...

NASA's Constellation moon plans are up in the air

Delicately but deliberately, NASA is closing down the Constellation program that was to replace the space shuttle and return astronauts to...

CDC documents sickle cell disease risks

African American children with sickle cell disease are at high risk of intellectual disabilities, hearing and vision deficits and frequent...

Helium rain washing away neon on Jupiter

It's raining on Jupiter. And probably on Saturn too.

Last Supper helpings have grown

The Christian faith holds several acts of "super-sizing" to be miracles accomplished by Jesus Christ -- a handful of fish and loaves of...

Amphibious caterpillars discovered in Hawaii

Moths of the Hawaiian genus Hyposmocoma are an oddball crowd: One of the species' caterpillars attacks and eats tree snails. Now researchers...

FDA warns against using rotavirus vaccine

The Food and Drug Administration on Monday warned doctors and parents against using the Rotarix rotavirus vaccine until further testing...

Monarch butterflies suffer population loss

Monarch butterflies, devastated by storms at their winter home in Mexico, have dwindled to their lowest population levels in decades as they...

TB rate down in U.S., but drug-resistant cases rise elsewhere

Even with tuberculosis cases falling sharply in the United States to historic lows, strains of drug-resistant disease are gaining ground...

Scientists side with smelt, salmon protections

A National Academy of Sciences panel has concluded that the much-disputed fish protections that have curbed water deliveries to the San...

Swine flu danger appears to be ebbing

The likelihood of a third wave of pandemic H1N1 influenza appears to be declining as all indicators of swine flu activity remain low...

Did you feel that quake? Online survey helps USGS seismologists

When a magnitude 4.4 earthquake shook Southern Californians awake in the predawn hours Tuesday, many rushed to their computers to learn...

Earthquake in Chile gives engineers some pointers

When structural engineer Anuj Bansal designs systems for hospitals, university libraries and apartment complexes, seismic safety is a key...

Farm chickens' DNA traced back to red jungle fowl

Hundreds of genetic mutations accumulated over thousands of years have transformed the red jungle fowl of South Asia into the domesticated...

Erectile dysfunction is strong predictor of fatal heart ailments, study finds

For the first time, researchers have shown that erectile dysfunction is a strong predictor of the likelihood that men will die of heart...