The evolution of the EarthCredit: NASA/Johnson Space Center
Earth formsCredit: University of Copenhagen, Lars A. Buchhave
Boom! Earth-Moon collisionCredit: NASA/JPL-Caltech
Magma oceanCredit: Diego Barucco/Shutterstock
First continentsCredit: Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
Breath of lifeCredit: Rob Bayer/Shutterstock
SupercontinentsCredit: Nicolle Rager, National Science Foundation, based on Pangaea map data, Paleogeographic Atlas Project, University of Chicago
Big chillCredit: Snowball Earth image via Shutterstock
Life explodesCredit: Katrina Kenny & Nobumichi Tamura
Mass extinctionsCredit: Rainer Albiez/Shutterstock
Ice agesCredit: Photo by Jonathan S. Blair/National Geographic
The Plasticene?Credit: Patricia Corcoran.
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