Obsidian is perhaps best known in its role as the dark black blade atop ancient spears and axes – but what if we wanted to ...

Dissolved carbon dioxide may have bubbled up from magma far below Earth's surface, contributing to prolonged warming.

The team analyzed meteorites from a large space rock designated as NWA7034 or “Black Beauty.” While all Martian meteorites ...

They look a bit like geodes, but they’re not exactly geodes. There are three types of rock: igneous, metamorphic, and ...

Together, retired earth science teachers Eugene Genova and Ron Russ travel far and wide searching for fossils.

There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such ...

A DISCUSSION on the origin of igneous rocks was held in Section C (Geology) of the British Association at York on September 7. The discussion was opened by Prof. Arthur Holmes, who sketched out a ...

In 1931, the Lafayette meteorite was rediscovered in a drawer at Purdue University. Since then, it has become a focus for ...