Monday, Dec 18 2017 | Updated at 03:19 PM EST

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University of Colorado - Boulder

Professor At University of Colorado Boulder Explains How Mars Lost Its Water

Mar 31, 2017 PM EDT Mars was once a hot spring planet until the sun washed its atmosphere away and took all of its liquid water.

Joint Australian And American University Study Find Cause Of Australia's 'Megafauna' Extinction

Jan 25, 2017 AM EST Human activity may be to blame for the extinction of large creatures that roamed Australia.

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