Nature is often the world's most patient artist, carving landscapes that defy imagination. While we frequently marvel at man-made monuments, the natural rock formations scattered across our globe tell ...

For the first time in more than a decade, famous ice caves along the Apostle Islands National Lakeshore were open to the public. Thousands of people came to take in ...

Leif Ristroph, a physicist and applied mathematician at New York University, was conducting experiments on how clay erodes in response to flowing water when he noticed tiny shapes emerging that ...