From Michael Benson’s new art book Planetfall: New Solar System Visions.
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Sunset on Mars. Appearing only about two-thirds the size it does from Earth, the Sun sets behind the 50-mile-distant rim of Gusev Crater. The blue glow is caused by light-scattering dust suspended in the atmosphere. Mosaic composite photograph. Taken by Spirit Rover, May 19, 2005.













