Cassini Scientist Would Be Surprised if Life Doesn’t Exist on Enceladus

The Cassini spacecraft has entered its final hours. And with the end nigh, Discover called up the Southwest Research Institute’s Hunter Waite — a Cassini principal investigator — for a look back at how this has redefined our view of where alien life might live in our solar system.

Before reaching Saturn in 2004, astronomers knew little about the gas giant’s many moons. Voyager got a glimpse of the system decades earlier. And Titan — the only known moon with a thick atmosphere — seemed lik

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