'Space's Deepest Secrets': Could a Sub Explore the Seas of Saturn Moon Titan? (Exclusive Clip)

The exclusive clip comes from the show's fourth episode, which airs Tuesday (May 17) at 10 p.m. EDT (9 p.m. CDT) on Science Channel. The episode explores water in the solar system and the ways researchers can learn about it — understanding the warm, wet environment of early Mars, probing the moonwide, ice-encrusted sea on Jupiter's moon Europa and more. In the clip, exclusively released to Space.com today (May 16), researchers talk about designing a submarine to explore Titan: a moon of Sa