"Titan gives us the opportunity to search for signatures of life in multiple types of systems - familiar water-based life, but also a biological system that may have developed with hydrocarbon as a solvent," said Elizabeth Turtle, a planetary scientist with the John Hopkins University Applied Physics Laboratory in Laurel, Maryland.
Titan offers many examples of really interesting organic chemistry experiments with alternative structures, added Georgia Tech planetary scientist Britney Schmidt.
"The Titan example is fantastic because you have a sedimentary process like a terrestrial planet, but it's ice involved," she said. "It's organic in nature, but it is not necessarily biogenic."
Discoveries by Cassini and its now-defunct companion probe Huygens have prompted scientists to put Titan on a growing list of planets and moons in the solar system that could support life.
RELATED: The Science Behind Cassini's Titan Flybys
Most of NASA's attention has focused on Mars, but the U.S. space agency has begun working on a life-detection mission to Jupiter's ocean-bearing moon Europa.
"The distribution of watery worlds in our solar system and beyond challenges our limited understanding of life's emergence on Earth and encourages us to think about the environmental conditions amenable to life," the Astrobiology Strategy report said.
"What we're trying to do with the exploration of Europa and the ocean worlds is nothing short of revolutionizing science, revolutionizing our understanding of whether or not biology works beyond Earth," added astrobiologist Kevin Hand, with NASA's Jet Propulsion Laboratory in Pasadena, Calif.
"We know that physics, chemistry and geology all work beyond Earth," he said. "But when it comes to that fourth fundamental science we have yet to make that leap."
WATCH: Can a Moon Be Older Than Its Planet?