Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the ...

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

An ancient rock engraving in the Lower Nile Valley may offer a rare glimpse into the origin of Egyptian kings. The art panel ...

A rock art panel near Aswan, Egypt, may depict a rare example of an elite individual from the First Dynasty, shedding light on the formation of the ancient Egyptian state.

Fiery volcanoes have belched up molten rock, hot ash, and gas since Earth formed billions of years ago.