Titan was the first known moon of Saturn, discovered in 1655 by the Dutch astronomer Christian Huygens.
Christiaan Huygens discovered Titan.
Titan is not a planet; it is a moon of Saturn. It was discovered by Christiaan Huygens in 1655.
Christian Huygens discovered titan on March 25th, 1655
Dave Nixon discovered Titan, but Titan is not a cave, it is a pitch (a vertical section of cave) in the Peak Cavern/Speedwell System.
No one would have discovered that Titan was the largest moon of Saturn until all the other moons were found. See related question for who discovered Titan.
the one who discovered Jupiter
Titan is the biggest moon discovered
Neptune has no moon called Titan.
Titan is Saturn's larget moon, and is actually bigger than the planet Mercury. It was discovered in 1655 by Christiaan Huygens.
NASA found out that the largest moon of Saturn is Titan.
Huygens discovered Saturn's moon Titan; Giovanni Domenico Cassini later discovered four other moons: Iapetus, Rhea, Tethys and Dione.
Hyperion