New research links the impact at Meteor Crater to a Grand Canyon landslide that may have created an ancient lake 56,000 years ...

A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

Flood warnings have been issued for Kansas and Missouri as Tomahawk and Brush Creeks rise in water levels. This live blog is ...

Oregon's Cram Fire has rapidly grown to engulf nearly 30,000 acres, prompting evacuations across multiple counties on Tuesday. Newsweek's live blog is closed.