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Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Sustaining California

NASA Mars 2020 Rover

NASA is trying to find signs of past life on Mars. They are about to send their latest Rover to the Red Planet to look for ancient artifacts. PBS reporter David Nazar visited the Jet Propulsion Laboratory in Pasadena to meet with JPL scientists.

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