The Acasta Gneiss is known as one of the oldest rocks on the Earth, estimated to be about 4 billion years old, located in the ...

Bengaluru's bustling present is anchored by a 3-billion-year-old rock in Lalbagh, a National Geological Monument. This ancient Peninsular Gneiss, formed under immense heat and pressure, predates ...

A soaring mountain range as tall as the Himalayas once towered over the U.S. East Coast. Some 20 miles (32 kilometers) of rock have since transformed into sand and mud, exposing an outcrop of the most ...