Past Blasts to Mars

Mars exploration has followed a long and bumpy interplanetary road. There have been 38 separate missions to Mars, and more than half have failed. The latest mission — the Phoenix lander — marks the 39th journey. Here, highlights of these Earthly attempts to film, circle and touch the cold Red Planet.Read more at...NPR.org, May 2008.

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Contradictory Results on 'Regressive' Autism Divide Researchers