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TED: 3 moons and a planet that could have alien life | James Green


Is there life beyond Earth in the solar system? NASA director of planetary science James Green says we don’t know yet, but that we’re “hot on the pursuit” and will answer that question in 10 years. It’s all about the ingredients needed for life: liquid water, energy and organic material.

So when we look out into the solar system, where are the possibilities? We’re concentrating our attention on four locations. The planet Mars and then three moons of the outer planets: Titan, Europa and small Enceladus.

 

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