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Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.
Once again we ponder the question: does Mars have water?
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Courtesy of NASA

New Evidence for Water on Mars
News story originally written on June 22, 2000

Scientist have discovered more evidence supporting the theory that liquid water is on Mars. The Mars Global Surveyor took pictures showing channels that were recently made on the Martian surface. Scientists say the channels are new, unlike previous images showing ancient channels made during the planet's formation.

In other words, some kind of liquid created these channels, one of which travels through a sand dune. Scientists say the dry riverbeds are about 6 feet deep. Up until now, it was thought that water flowed on Mars millions of years ago. But the cold, dry atmosphere of today shouldn't allow liquid water on the surface. This evidence changes all of that.

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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