As James Cameron's "Titanic" gets re-released in 3D, only one significant change has been made to the movie -- astronomers will be impressed.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/wDuJDvDy74U" height="1" width="1"/>
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As James Cameron's "Titanic" gets re-released in 3D, only one significant change has been made to the movie -- astronomers will be impressed.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/wDuJDvDy74U" height="1" width="1"/>