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

Long before oceans stabilized and continents formed, Hadean Earth was a world of molten rock, relentless asteroid impacts, and toxic atmospheres. Surface temperatures were extreme, and the young ...

"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 ...

Conditions on Earth for the first 500 million years after it formed may have been surprisingly similar to the present day, complete with oceans, continents and active crustal plates. This alternate ...

Maybe Earth’s early years weren’t so hellish after all. Asteroid strikes repeatedly bombarded the planet during its first eon, but the heat released by those hits wasn’t as sterilizing as once thought ...

During the Hadean eon, Earth was a world of constant impacts, molten rock, and a toxic atmosphere. The surface was repeatedly ...

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 ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

Conditions on Earth during its first 500 million years may have been cool enough to form oceans of water instead of being too hot for life to form. This alternate view of Earth's first geologic eon, ...