Cover art for podcast Orbital Path

Orbital Path

45 EpisodesProduced by PRXWebsite

Astronomer Michelle Thaller takes a look at the big questions of the cosmos and what the answers can reveal about life here on Earth. From podcast powerhouse PRX, with support from the Sloan Foundation.

18:44

Space Robots to Europa!

Galileo discovered Europa, Jupiter’s fourth-largest moon, in 1610. In 1977, the Voyager spacecraft buzzed past and we realized it was covered in ice. It took a few more years to understand that it also likely had unfrozen liquid water oceans.

In this episode, Kevin Hand, Deputy Project Scientist for the Europa mission at NASA’s Jet Propulsion Lab (JPL) explains how his team plans to launch a series of missions to orbit, land on, and hopefully explore the curious moon’s deep salty oceans with a self-driving space submarine.

Hand thinks Europa has the best chance of fostering living alien life at this moment in time. “If we’ve learned anything about life on Earth, where there’s water, you find life and there’s a whole ton of water out at Europa,” Hand says.

And Tom Cwik, manager for JPL’s space technology program, describes how he looks to Earth-bound submarines, ice drills and self-driving cars for inspiration of how to explore this distant world.

Image credit: Courtesy NASA’s Galileo spacecraft.

Orbital Path is produced by Justin O’Neill and editor Andrea Mustain. Production oversight by John Barth and Genevieve Sponsler. Hosted by Michelle Thaller.

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