These are photos of the Red Plant. I'd say are unique!
Jan 27th, Mars will be closer to Earth than any other time between 2008 and 2014.
Below, this image looks remarkably like groves of trees growing among Martian dunes but, the trees are an optical illusion. They are actually dark streaks of sediment on the downwind side of the dunes. They were created by escaping gas from the evaporating carbon dioxide ice below. The bottom of the ice melts into vapor and moves toward holes in the ice carrying dark sediment along with it that is then deposited when the gas escapes.
Below a dune field on the floor of a crater made by an asteroid impact.
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