See Yellowstone National Park’s most colorful hot springs from a great vantage point when you hike the Grand Prismatic Spring ...

A new documentary brings early human history to life with a "scientifically accurate" collection of hyper-real 3D models.

In 1929, archaeologists discovered the 140,000-year-old skeleton of a young girl in Skhūl Cave. The researchers believed her ...

In fantasy worlds, trees like the Lord of the Rings’ Ents are agile and mobile. In the real world, they’re slow.

Officials in Texas are facing mounting questions about whether they did enough to get people out of harm’s way before a flash flood killed more than 100 people over the weekend.