Star dunes - sometimes called pyramid dunes - stand out among sand dunes for their towering height and eye-catching form.

Take a flight of stairs down a cliff in one California town, and you'll discover a gorgeous hidden beach perfect for lounging ...

A strikingly clear lake nestled in southwestern Turkey has become a focal point for scientists aiming to understand the ...

Discover the 20 Most Dangerous National Parks in The US in this in-depth look at extreme terrains, unpredictable wildlife, ...

The Medusae Fossae Formation of Mars has ice deposits over 2 miles deep, potentially providing vital water resources for ...

The Curiosity rover detected the largest organic molecules to date on Mars, which may be fragments of fatty acids, or some of ...