https://aeon.co/essays/how-the-harsh-icy-world-of-snowball-earth-shaped-life-to… Created Mon, 16/02/2026 - 22:00 Updated Mon, 16/02/2026 - 22:00 Our planet was once a harsh, alien, icy world. Yet this deep freeze may have shaped you, me and all life on Earth- by Graham ShieldsRead on Aeon
