Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: NASA/MSSS/Caltech/ CTX topography: NASA/MSSS/USGS HiRISE: NASA/U.Arizona/USGS/Amaz ...

Zion National Park to Grand Canyon road trip guide • Discover the best route, scenic stops, travel tips, and must-see ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

Combine a trek through nature with outdoor yoga classes, a two-for-the-price-of-one workout, with opportunities in Los ...

With beautiful views and a short and sweet route, this might just be the most romantic hiking trail in Louisiana.

U.S. News & World Report named Grand Canyon National Park and Sedona as two of the Top ... No matter what kind of scenery you ...

Grand Canyon won its sixth straight game and avenged its last loss at Utah Valley with a defensive clinic at home that moved ...

Several popular trails in the Grand Canyon National Park have reopened after workers stabilized a dangerous chlorine gas leak near the Roaring Springs waterfall. The reopening came after concerned ...

Recently, the discovery of dangerous chlorine gas forced trail closures at Grand Canyon National Park, keeping people off the wintery trails. All inner canyon corridor trails were closed from ...