
Shortly after the formation of our solar system the potential for life begins when Earth collides with another protoplanet. Somehow Earth survives and...

Throughout its history Earth has continuously fluctuated between "greenhouse" and "icehouse." An icehouse phase known as "Snowball Earth" is the most ...

540 million years ago the ancestors of modern complex organisms suddenly emerge in the Cambrian seas. Evolution progresses and even manages to make th...

In the Triassic period dinosaurs rise to dominate our planet for 150 million years. 66 million years ago the dinosaurs vanish—along with 75% of all sp...