Astronomers estimate Titan's largest sea is 1,000-feet deep

Far below the gaseous atmospheric shroud on Saturn's largest moon, Titan, lies Kraken Mare, a sea of liquid methane.

Cornell University astronomers have estimated that sea to be at least 1,000-feet deep near its center—enough room for a potential robotic submarine to explore.

A billion miles from Earth, frigid Titan is cloaked in a golden haze of gaseous nitrogen. But peeking through the clouds, the moonscape has an Earthlike appearance, with liquid methane rivers, lakes and seas, according to NASA.

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Credit: NASA/John Glenn Research Center

An artistic rendering of Kraken Mare, the large liquid methane sea on Saturn’s moon Titan.

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Titan Submarine Exploring the Depths of Kraken Mare On Saturn's Moon Titan

What would a submarine to explore the liquid methane seas of Saturn's Moon Titan look like?

n this stunning animation, watch NASA's Cassini spacecraft begin the last chapter of its 20-year mission to Saturn.

Diving deeper into Saturn's rings than ever before, scientists hope that the data from Cassini's final orbits will help to improve our understanding of the giant ringed planet.

The probe's last act will be to plunge itself into the planet's atmosphere, where it will burn up and become part of the planet itself.