Photo of the Day

Associated Press
In this photo taken Thursday, Jan. 24, 2013, in Chicago, University of Illinois-Chicago computer scientist Jason Leigh, co-inventor of the CAVE2 virtual reality system, stands in the CAVE2's doorway where the system's 72 stereoscopic liquid crystal display panels  encircles the viewer 320 degrees and creates a 3D environment that can take you to the bridge of the Starship Enterprise, a flyover the planet Mars, or through the blood vessels of the brain. (AP Photo/Charles Rex Arbogast)

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