Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. In the foreground is the edge of a rift valley created by faulting in the crust of Venus . The valley runs all the way to the base of Gula Mons, a 2 mile high volcano seen here on the right, some 450 miles in the distance. On the left is another volcano, Sif Mons.
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