Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal on a slab of sandstone recovered near Melbourne.

An image authentically captured a phoenix-shaped lava flow from Sicily's Mount Etna. Rating: True (About this rating?) For ...

The moon spent a few million years as a volcanic wasteland, covered with ongoing eruptions that spewed from mountains and ...

The record sheds light on the climate early humans experienced when they were spreading out of Africa. A tree-ringed African ...

Feel like you're stepping foot on the surface of the moon at this surreal national monument in Idaho, with craters formed by ...

The Midcontinent Rift is a giant tear that formed in what is now the U.S. Midwest 1.1 billion years ago. Nicknamed North ...

The Yellowstone Plateau Volcanic Field has some of the largest rhyolite lava flows on Earth. Have you ever wondered what ...