The fantastical arch shapes of sandstone formations have long been thought to be sculpted by wind and rain. But a team of researchers has now found that the shapes are inherent to the rock itself.

The Cosmic Navel is larger than it appears in this image—it spans about 200 feet wide and is between 16 and 65 feet deep. courtesy of Flickr user John Fowler With his latest work, photographer John ...

NASA's Mars Curiosity rover explored a sandstone slab over the weekend to determine if the area, known as Windjana, is a good spot to drill deeper into the red planet. The researchers are continuing ...

The age and explanation for the formation of the pink-colored Tava sandstone in Colorado's Rocky Mountains have long puzzled geologists. The age and explanation for the formation of the pink-colored ...