NASA's Marks 30th Anniversary of Mars Viking Mission

Thirty years after the first successful landing on Mars by NASA's Viking spacecraft, the ambitious mission continues to evoke pride and enthusiasm for future space exploration.

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<p><a href="http://www.physorg.com/news72372421.html">NASA's Marks 30th Anniversary of Mars Viking Mission</a></p> <p>Thirty years after the first successful landing on Mars by NASA's Viking spacecraft, the ambitious mission continues to evoke pride and enthusiasm for future space exploration.</p>