Opinions expressed by Forbes Contributors are their own. David Bressan is a geologist who covers curiosities about Earth. “We were thrilled!” said Dr. David Grant, a researcher at the ...

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds. Known as large low-seismic-velocity provinces (LLSVPs), these blobs are both hotter and ...

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

Thermochronology allows researchers to estimate the temperature that mineral crystals ... Snowball Earth. "The underlying concept is pretty simple: Something removed a whole lot of rock, resulting ...

This reliquary holds a bone fragment purportedly belonging to Saint Sebastian, within a central rock-crystal vessel. Reliquaries—containers constructed to hold relics, typically the bones of saints or ...