Study of 17,000 years of fish fossils reveals rapid evolution

Does lightning strike on Venus? Maybe not, study suggests. In new research, space physicists at CU Boulder add strong new evidence suggesting that you probably wouldn't see bolts of lightning flashing from Venus' thick, acidic clouds—or, at least, not very often.

When cells go boom: Study reveals inflammation-causing gene carried by millions

Study indicates possible link between chronic stress and Alzheimer's disease