Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.

One photographer put the age of starlight into perspective with stunning projections on some of Earth's oldest rock ...

A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

Tucked away in a lesser-visited area of Kansas is a family-friendly rock park that offers visitors a year-round glimpse into ...

They discovered large submersed sandstone formations following the outer margins of Zealandia and deposits of basaltic rock pebbles. Sample locations and inferred geological map of the southern ...

Hogwallow is packed with fascinating formations. “The rocks at Hogwallow Flats appear to be very fine-grained, which is exciting to scientists on the mission as fine-grained rocks may have the ...