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

After more than two decades of lawsuits and pressure applied by tribes, states and environmental groups, the EPA imposed a rule last year requiring the state’s six taconite mines and processing plants ...

A remarkable coincidence occurred 56,000 years ago, when the impact that created Meteor Crater triggered both a landslide-dammed lake and a paleolake formation in the Grand Canyon. Earth’s ancient ...