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

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the Greek god of the underworld, reflecting the extreme heat that likely ...

The oldest terrestrial materials ever dated by scientists are extremely rare zircon minerals that were discovered in western ...

We are part of a research team that has confirmed the oldest known rocks on Earth are located in northern Québec. Dating back 4.3 billion years, these rocks provide a rare and invaluable glimpse ...

New research suggests a group of rocks found in northeastern Canada might just be the oldest rocks on Earth.

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.

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

We are part of a research team that has confirmed the oldest known rocks on Earth are located in northern Québec. Dating back 4.3 billion years, these rocks provide a rare and invaluable glimpse into ...

NEW YORK (AP) — Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada.

The BIC, which covers nearly 66,000 square kilometers—about the size of Ireland—is one of the oldest and largest igneous rock formations on Earth. Created by underground magma that cooled and ...

NEW YORK (AP) — Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn in this story: What are now thought to be the oldest rocks on Earth have ...