Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought.

A comprehensive examination of the oldest minerals on the planet, microscopic grains of zircon more resistant than diamond, ...

The Hadean Earth was not a “young paradise” — it was a violent, molten world under nonstop bombardment. Oceans of lava, toxic air, constant impacts, and extreme heat made the planet look more like a ...

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 ...

Parts of the ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought. New research led by scientists at the University of Wisconsin–Mad ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: In an investigation to find out what sparked life on ...

The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years. The rare remnants that ...

Scientists found rocks in northern Quebec that may be over 4 billion years old. These ancient stones offer a glimpse into ...

Olivine cumulate from the Weltevreden Formation showing that although these cumulates are significantly altered, they still contain preserved unaltered olivine cores (microscopic image taken in ...

Intro -- Preface -- References -- Contents -- 1 Why Hadean? -- Abstract -- 1.1 Introduction -- 1.2 Organization of This Book -- 1.2.1 A Brief Overview -- 1.2.2 Chapter Themes -- 1.3 Defining the ...