As NASA's Cassini spacecraft zooms toward Saturn's smoggy moon Titan for a targeted flyby on June 18, mission scientists are excitedly hoping to repeat a scientific tour de force that will provide valuable new insights into the nature of the moon's surface and atmosphere.<img src="http://feeds.feedburner.com/~r/sciencedaily/~4/EdGrWUau8Dk" height="1" width="1"/>