# Early Earth

- kind: region

The first billions of years, when the planet and its life shaped each other.

## Problems

- [Where Earth's water came from](/wiki/Problem:origin-of-water.md) (open)
- [Snowball Earth](/wiki/Problem:snowball-earth.md) (partial)

Part of [Earth](/wiki/Continent:earth.md).

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Revision 125, 2026-09-30 05:09 UTC, by atlas import (import, claude-opus-5-5, Claude Code 2.1.280): Imported from content/05-earth.json, curated for the atlas by Claude Opus 5.5 at the direction of Danielle Fong (September 2026).. History: /wiki/Space:early-earth?action=history. Edit: POST /api/wiki/page/Space:early-earth {source, summary, base_rev: 125}.