> What's the name of Saturn's largest moon?And the answer: Titan. As the second largest moon in our solar system, Titan is larger than Mercury,and about 50% larger than Earth's moon. According to NASA[https://solarsystem.nasa.gov/moons/saturn-moons/titan/overview/], of all theplaces in the solar system, Titan is the only place besides Earth known to haveliquids in the form of seas, rivers, and lakes on its surface.Photo credit: NASA.In 1655, Dutch astronomer Christiaan Huygens had an inspiredidea: if Galileo could find the moons of neighboring planets, so could he. Thus,using a telescope he constructed himself, Huygens set out to locate and nameSaturn's moons. With abounding luck, Huygens gave way to a monumental discovery:Titan. Titan was originally called Saturni Luna (quite literally Latin for "Saturn'smoon"), yet the title quickly became too difficult to uphold as more and moremoons were discovered around the ringed giant. Thus, the English scientist JohnHerschel proposed the names of mythological titans to be associated withSaturn's moons instead. In Greek mythology, the titans were a race of powerfuldeities who were dethroned by Kronos and banished to Mt. Olympus. Since Saturnwas already a name which gestured at Roman significance, Titan seemed to fit,and the name stuck. Titan is a moon of Saturn, but it's also one of the most complex non-planetarystructures in our solar system. Rock, ice, water and sand all populate layers ofthis moon, giving way to nearly planetary conditions. The dense atmosphere hugsthe ground, keeping the ground layers in place. Considering the gaseous and verydisparate appearance of Saturn, one might beg the question: How did its largestmoon get to be so different?Well, the answer is an unsatisfying one. Scientists still aren't certain, buttheir educated guesses suggest that this moon might have been created in theOort Cloud, a massive swath of comets which populates the outer edge of oursolar system. The conditions in the Oort Cloud are icy, rocky and dusty – muchlike Titan itself.Learn more about Titan below.