Curiosity on way to Mars
Space missions, of course, have been one of the most challenging testing grounds for robots for many years. Pictured here is the Curiosity, an SUV-size robot that is expected to land on Mars this summer. The nuclear-energy-powered Curiosity will be essentially a mobile science laboratory to explore whether the planet has ever been able to harbor carbon-based life over the course of its existence.
April 3, 2012 5:45 AM PDT
Photo by: NASA
| Caption by: Martin LaMonica
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