Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Federal judge dismisses Arizona GOP lawsuit challenging Biden's designation of Baaj Nwaavjo I'tah Kukveni National Monument ...

A federal judge has rejected a lawsuit by Arizona lawmakers challenging former President Joe Biden’s designation of a ...

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

A midair collision at the Grand Canyon killed over 100. The disaster partially led to the start of the FAA and changed air ...

Now, scientists believe that they have figured it out. Two huge canyons scored into the surface of the Moon were created in ...

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the far side of the moon — the side that always faces away from Earth — near the lunar south pole ...

This January, lots of hotel news came across TPG's desk, including a new Holiday Inn at the Grand Canyon, reservations ...

Grand Canyon adventure travelers will have one less option for planning activities. REI Co-op announced on Jan. 8 that it ...