Grand Canyon rim-to-rim-to-rim runs test ultra runners with brutal climbs, extreme weather and mental grit, turning the ...

When filmmaker and National Geographic photographer Pete McBride set out on a 750-mile, multi-excursion trek from tip to tail of the Grand Canyon in 2016, he knew he would encounter certain challenges ...

From helium-3 energy to a new space race, the Apollo 17 astronaut explains why returning to the moon matters now.

There are hundreds of moons in our patch of space. Some are tiny, some huge; some neatly spherical, some potato-shaped. Some ...

From blooming tulip fields in the Netherlands to the glowing shell of the Bubble Nebula, last week’s PPOD images celebrated ...

Popular Westerns like "Tombstone" and "The Outlaw" were filmed in Arizona, and you can visit the spots to this day. See where ...

As stars twinkle less and less in this rapidly growing part of northern Utah, a new group is working to restore their dark ...

Sandarsh Krishna was last seen on the Rim Trail ...

The National Park Service announced on May 12 that the body of an Arizona State University student who had been missing for ...

Chuck Rhodes, Phil Richards, Lloyd Pack, Gary Waugh, and Jimmy Vaughan reunite after hang gliding at the Grand Canyon.

It's time to plan your summer getaway and if you haven't gone to the Grand Canyon yet, we have all you should know to make ...

The body of a man missing in Grand Canyon National Park since April 28 was found on Saturday. Authorities are continuing to investigate.