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With a thick atmosphere, clouds, a rain cycle and giant lakes, Saturn s Cassini spacecraft, propylene has been detected for the first time on Titan.For complete transcript, click here.Watch this video on the NASAexplorer YouTube channel. For More InformationSee [http://www.nasa.gov/content/goddard/nasas-cassini-spacecraft-finds-ingredient-of-household-plastic-in-space](http://www.nasa.gov/content/goddard/nasas-cassini-spacecraft-finds-ingredient-of-household-plastic-in-space)