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 ...

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, ...

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 ...

Your browser does not support the video element. The durable mineral zircon is the oldest known stuff in our Earth's crust. It is formed only under extreme ...

THE red rocks of the Jack Hills in Western Australia have an incredible story to tell. Here, deep in the ancient heart of Australia, lie some of the oldest rocks ever found on Earth – up to 3.7 ...

From Earth’s oldest rocks to glowing swamp lights and hidden ocean life, scientists in 2025 uncovered clues beneath our feet ...