NASA's Cassini spacecraft will reach the half-way point of its 4 year mission on Friday - it arrived at Saturn on June 20, 2004. Although the spacecraft has already visited Titan 15 times, it'll pick up the pace for the remainder of its mission, performing another 30 flybys. Starting in July, mission controllers will begin altering Cassini's orbit with respect to the Sun by nearly 180-degrees. This will give it a bird's eye view of Saturn's ring system.

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Cool!