Cassini spacecraft: Mystifying pictures

The Cassini spacecraft has coasted to its closest encounter yet with Saturn's icy moon Enceladus -- but the pictures it took mystify NASA scientists.

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<p><a href="http://www.physorg.com/news5301.html">Cassini spacecraft: Mystifying pictures</a></p> <p>The Cassini spacecraft has coasted to its closest encounter yet with Saturn's icy moon Enceladus -- but the pictures it took mystify NASA scientists. </p>