Rosie is a freelance writer living in London. She has covered everything from ancient Egyptian temples to exciting medical breakthroughs, but she particularly enjoys writing about wildlife, ...

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Moqui marbles on a sandstone slope. Marjorie Chan, University of Utah Hikers rambling through Utah's candy-striped canyons sometimes come across a strange-looking sight. Where the Navajo Sandstone ...

A senior Bureau of Land Management law enforcement official who was found to have previously violated federal ethics rules at the Burning Man festival and clashed with congressional leaders is the ...

While Dan Love was in charge of Bureau of Land Management law enforcement for Utah, rare items known as moqui marbles appeared all over the agency’s Salt Lake City headquarters, apparently as gifts ...

Like most Southern Utah hikers, I had seen Moqui marbles before but I never thought much of them. Then I learned about their geological significance. Last spring my friend Jani, a planetary scientist, ...

It was day four on a backpacking trip through Utah's Grand Staircase-Escalante National Monument when I came upon a field of stone spheres sitting in the sun. "Moqui marbles!" my guide shouted, ...

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 ...

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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 ...

The sandy landscapes of southern Utah are home to a bizarre geological phenomenon. Brown-black balls ranging in size from a pea to a grapefruit litter the deserts of the Beehive State (and other parts ...

predicted such stones would be found on the Red Planet. In a study published in the June 17 issue of the journal Nature, the Utah researchers suggest both the Martian and Utah rocks — known as ...