How has the Earth evolved? main content.

How has the Earth evolved?

Part of Hall of Planet Earth.

Greenland Isua sequence

Rocks tell the Earth's story
The continental crust contains the historical record of our planet. Its most ancient rocks are four billion years old, and the youngest ones are still forming today. Parts of the continental crust may be older than four billion years, but if so, they are not exposed, or have not been found, on the Earth’s surface. The rocks of the crust convey the story of how the planet has been transformed between the period shortly after its formation and the way we see it today.

How did the Earth form?
The Sun and