PASADENA, Calif. — Climate cycles persisting for millions of years on ancient Mars left a record of rhythmic patterns in thick stacks of sedimentary rock layers, revealed in three-dimensional detail ...

Some of the best patterns can be seen in strata, layers of rock that have been formed by layer upon layer of rock or soil millions of years ago. These layers have become exposed by erosion from the ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

Called geoglyphs, these strange circular patterns etched into the rocky sands from Saudi Arabia to Syria have no known meaning or origin. Though archaeologists say they likely date back over 2,000 ...

These carefully-patterned rock arrangements look like something out of a meditation garden, or environmental art. But they are actually the product of simple computer algorithms expressed through a 3D ...

The volcanic sheet rocks could be 6.5 crore years old Hyderabad: Historians have found differential weathering volcanic rock in Varthamanuru of Bazar Hatnur in Adilabad district. The volcanic sheet ...