Thursday, January 21, 2010

AdelaideNow... Photographic illusion shows trees on Mars

Like the tall tales that have gone before it, this latest image of Mars is nothing but an optical illusion.
Taken by NASA and the European Space Agency's Mars Express Orbiter, the picture is from a collection showing vast sand dunes and icy landscapes on the surface of the red planet.
Australian National University associate professor of astronomy Charley Lineweaver said the sand dunes were extremely steep, and the "tree-like" shapes were simply gullies running down the slopes.
"It looks like trees standing up but it's really an optical illusion because you can't tell the steepness of the slopes," he said.
More great Mars images from the Huffington Post.

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