The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life.

Explore the complete timeline of Earth’s evolution - from formation and first life to modern climate change and future environmental shifts.

Jul 29, 2025 · The history of Earth is not just a record of rocks and organisms—it is a story of transformation, resilience, and wonder. From a fiery ball of molten rock to a cradle of …

Follow the history of our home planet over billions of years, from a molten ball of lava to the thriving life of today

Due to plate tectonics, Earth’s land is constantly shifting and changing over time. 250 million years ago, all of Earth’s landmass was united in a single supercontinent called Pangaea.

Jul 23, 2025 · Origin and Evolution of Earth: Earth was formed around 4.54 billion years ago. Early theories like the Nebular Hypothesis, Revised Nebular Hypothesis, Binary Theories, etc. …

What caused the rise and extinction of different types of life on Earth? How do major geologic events, like volcanic eruptions or asteroid impacts, shape Earth's history?

Entire courses and careers have been based on the wide-ranging topics covering Earth’s history. Throughout the long history of Earth, change has been the norm.

The history of Earth spans over 4.5 billion years, from its formation through the Big Bang to the present day. Over this time, the planet has undergone a vast array of changes, including the …

Apr 16, 2025 · Here is the origin story of Earth—the only place we know life to exist. The Big Bang brought the universe into existence more than 13 billion years ago. But it wasn't until much …