NASA's Perseverance Mars rover spotted a mysterious rock made of hundreds of tiny spheres that resemble spider eggs. Studying ...

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

But Curiosity wasn't the only one with a geological mystery. At the same time, roughly 2,300 miles away on the other side of ...

Uluru, a World Heritage site in northern Australia, is renowned for its color-changing ability due to its sandstone ...