While the summer heat simmers, the Sedona Heritage Museum is offering visitors a chance to learn about the history of the Red ...

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic wonder.

Stacey Wittig is a Flagstaff journalist focusing on travel. Photo by Stacey Wittig: Michael Reardon, general manager of Trailborn Grand Canyon in Williams, says the boutique hotel blends midcentury ...

Asteroid impact created two Grand Canyon-sized lunar canyons in under 10 minutes. The impact released energy 130 times that of current global nuclear arsenals. These findings are significant for ...

Researches have determined that ejecta from an ancient asteroid. strike carved out the grand canyons (Vallis Schrödinger and Vallis Planck) in less than 10 minutes.

The incoming object created an impact basin and sent streams of rocks hurtling like missiles, NASA said. Within minutes, two canyons comparable in size to Arizona's Grand Canyon were formed.

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side.

CAPE CANAVERAL, Fla. (AP) — New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side. That’s good news ...

CAPE CANAVERAL, Fla. (AP) — New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side. That’s good news ...