Space & Astronomy
September 22, 2009 ·
5 comments
Image Credit: NASA
Source: Yahoo! News | Comments (5)
How Mars turned red
By T.K. RandallSeptember 22, 2009 ·
5 comments
Image Credit: NASA
A new theory has suggested that Mars was not always red and that the red dust would have never come in to contact with liquid water, instead being produced by the erosion of rocks being ground down over a long period of time.
Mars was not always red, according to a new theory for how the planet took on its characteristic ruddy hue. Until recently, Mars' color was thought to be a product of liquid water, which scientists think flowed over the planet's surface billions of years ago, rusting rocks.
Source: Yahoo! News | Comments (5)
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