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This clock representation shows some of the major units of geological time and definitive events of Earth history.

Histomap of evolution

Geology cartoons and earth science humor from Unearthed Comics #geology #Humor #science #cartoons #funny

Design Work Life » Charlotte Trounce Illustration

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NASA discusses Dec. 21 Mayan end-of-world prediction: "The greatest threat to Earth in 2012, at the end of this year and in the future is just from the human race itself."

Lax rules letting drillers pollute the earth. Read, weep, organize, and repin.

On Mars: Viewed from space Earth has no borders