While many dream of coastal vacations by the sea, this country boasts a massive collection of glimmering turquoise lakes, perfect for your next outdoor trip.

Research Grand Canyon landslide-dam and paleolake triggered by the Meteor Crater impact at 56 ka by a team from the University of New Mexico describes a lake in the Grand Canyon created by a ...

Two minor meteor showers — the Southern Delta Aquariids and Alpha Capricornids — peak overnight on Monday (July 29-30), making it a great night for stargazing.

When high-velocity asteroids land on Earth, they can form a meteor impact crater. Such collisions have occurred throughout Earth's history and still occur on other planetary bodies today.

The activities of illegal miners are a threat to the sustainability of the crater.

Impact craters are formed when an object from space such as a meteoroid, asteroid or comet strikes Earth at a very high velocity. This leaves an excavated circular hole in the Earth's surface.

A new study suggests a meteor strike that created Arizona’s Meteor Crater 56,000 years ago may have triggered a massive landslide in the Grand Canyon, blocking the Colorado River and forming a ...

A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River that runs through the national park.

July will showcase three meteor showers with the famous Perseids peaking soon. Here's when and how to watch in Arizona.

The Perseid meteor shower continues tonight with shooting stars and zooming fireballs. Here's where, when, what time, how to watch for best visibility ...