+**Snowball Earth** refers to ancient periods when ice sheets likely covered nearly the entire planet, from poles to equator. This extreme [Climate](/wiki/climate) event led to a planetary deep freeze, profoundly influencing [Early Life](/wiki/early_life) and Earth's geological evolution.
+## See also
+- [Ice Age](/wiki/ice_age)
+- [Glaciation](/wiki/glaciation)
+- [Precambrian](/wiki/precambrian)
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