A breathtaking image of Earth highlighting North America from space.

When Earth nearly froze over

During the Neoproterozoic, much of the planet may have been covered in ice—Snowball Earth.

Earth: Snowball Planet and Life’s Big Leap

Detailed view of a purple ammonite fossil highlighting its spiral pattern and texture.

After the deep freeze

This icy stretch came just before the Cambrian explosion, when life’s complexity surged.

Earth: Snowball Planet and Life’s Big Leap

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Earth: Snowball Planet and Life’s Big Leap | DeepSwipe