An accretion of iron molecules leaves a bizarre pattern in the sandstone. For larger image, click here. Photo by Jeff Mitton. The multitude of parks on the Colorado Plateau is testimony of our ...

Even before marble-shaped pebbles nicknamed "blueberries" were discovered on Mars by the Opportunity rover, University of Utah geologists studied similar rocks in Utah's national parks and predicted ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

In a quiet part of southern Romania, rounded sandstone formations sit in open fields and woodland edges, drawing steady scientific interest. Known as 'trovants', these stones are often described as ...

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