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We now offer the Cool It! card game in our Science Store. Cool It! is the new card game from UCS that teaches kids about the choices we have when it comes to climate change.
In the above photograph is shown a Calendar Stone, also called Sunstone. The carvings in the stone represent the four cycles of creation and destruction. The skull at the center depicts the god Tonatiuh, the fifth sun. A similar sunstone is at the Museo Nacional de Antropologia, Mexico.
Click on image for full size
Image courtesy of Corel Corporation.

Tonatiuh

For the Aztecs, who lived in central Mexico, Tonatiuh was a Sun god. Aztecs believed that four suns had been created in four previous ages, and all of them had died at the end of each cosmic era. Tonatiuh was the fifth sun and the present era is still his. Tonatiuh was in charge of the Aztec Heaven called Tollan. Only dead warriors and women who died in childbirth could be received in Tollan.

Tonatiuh was responsible for supporting the universe. To prevent the end of the world, Aztecs believed it was essential to maintain the strength of the Sun god by offering him human sacrifices.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF