A new study has revealed the formation of the Grand Canyon may be tied to the creation of another Arizona landmark.

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

W hen an asteroid made Meteor Crater in northern Arizona, it did more than leave the Earth’s best preserved impact crater.

ALBUQUERQUE, N.M. (AP) — U.S. land managers are racing the clock as hotter, drier weather raises the risk of wildfires in the ...

How field trips to geologically significant spots clarify textbook concepts and also make students environmentally savvy ...

Grand” is a weighty word to carry at the front of your name. It makes a remarkable promise; one that New York’s Grand Central ...

Classic rocker Steve Miller has canceled his U.S. tour because he said severe weather including extreme heat and ...

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 proposal to build a water tower in Annapolis for the Heritage Harbour neighborhood has been met with opposition from ...

WASHINGTON (AP) — President Donald Trump is granting two years of regulatory relief to coal-fired power plants, chemical manufacturers and other polluting industries as he seeks to reverse Biden-era ...

With temperatures rising worldwide, scientists warn that staging the World Cup and other soccer tournaments in the Northern Hemisphere summer is getting increasingly dangerous for both players and ...

Is Arizona's most beautiful place an iconic red rock butte, a blue-green waterfall or an otherworldly cave formation? Vote in our stunning views poll.