Updated: 1 hour 12 min ago
A new study shows that eating a diet high in protein during middle age can significantly increase the chance of dying from cancer.
The Iditarod dogsled race started on Sunday—here's what you might not know about the so-called last great race.
Women are just as good at farming as men, says the UN Food and Agriculture Organization. But with less access to resources, they get much lower yields.
Steve Irwin's daughter Bindi gets caught up in Blackfish controversy.
A trip across space takes us from Iowa's skies to the far reaches of distant galaxies in the week's best space pictures.
Analysis of teeth from 87 ancient Cahokians indicates that massive immigration may have driven the city's explosive growth.
Darwin and others said skin cancer couldn't influence the evolution of skin color. A new study makes the case that it did.
Lattice-like "boxwork" rocks shaped by water have marked a Martian mountain. How did so much water end up so high?
This infant is the second HIV-infected baby in recent years to test negative for the virus after aggressive treatments.
Nutrition labels mislead consumers about how many calories they're getting from whole versus processed foods, says one scientist.
McKenzie Funk's new book "Windfall" documents how businesses hope to make money from climate change.
The Russian president is one of many nominated for the prize. Here's how the process works.
National and state parks in California are under threat from burl wood seekers.
It's almost time to move those clock forward an hour. Read why we have daylight saving time—and why it's controversial.
Photos capture a river otter attacking a gator in a Florida river. The otter then feasted, witnesses say.
An ancient impact crater on Mars may be the source of a type of meteorite widely found on Earth, a controversial new study suggests.
Bald eagles have made a comeback. See life in the nest now during peak nesting season.
Cold case murder convictions result most often from fresh witnesses, not new technology, a forensic science study suggests.
Photographer Ed Ou describes the challenges of documenting the unfolding crisis—and the patience that's required.
A new species of dinosaur found in Portugal likely used brute force to take down prey, a new study says.