Titan's plastic atmosphere

By Ashley Yeager, 18:07 PM September 30, 2013

Saturn's moon Titan has an ingredient of plastic in its atmosphere.

New data from the Cassini spacecraft shows that the moon's lower atmosphere contains molecules of propylene, which is used to make plastic containers and other products on Earth.

The propylene discovery came as no surprise to astronomers, who have been searching for the molecule in Titan’s atmosphere since the Voyager 1 spacecraft flew by the moon in 1980. The scientists had found other light and heavy carbon-based molecules on...

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