New Mexico geologist and author Magdalena Sandoval Donahue discusses the interesting geology of the Santa Fe National Forest ...

The gold standard for determining the age of ancient rocks is measuring the radioactive decay of isotopes of uranium into lead in minerals known as zircons. But not all rocks contain zircons, so ...

The detailed reconstruction brings the prehistoric hunter-gatherer to life, revealing an intriguing set of features.

When Mijares first excavated Callao Cave in 2003, he found 25,000-year-old evidence of human activity—but he didn't dig any deeper than about four feet down.

The Cave of the Crystals is a geological wonder and was only discovered in 2000, with the stunning chamber shaped like a ...

Join us as we explore the incredible island of Niue with one crazy hike, epic caves, and amazing SCUBA adventures. This video ...