Moon of Saturn · Updated May 2026
Titan.
Titan is Saturn's largest moon and the second-largest moon in the solar system at 5,150 km diameter. It is the only moon known to have a substantial atmosphere — denser than Earth's, mostly nitrogen with about 5% methane — and the only world besides Earth with stable surface liquid: lakes and seas of liquid methane and ethane.
View Saturn system in 3D →Key facts
Titan's atmospheric pressure is about 1.5× Earth's and its gravity is one-seventh. Combined, those make it the only place humans could fly under their own muscle power with strap-on wings — calculation confirmed.
About Titan
The Cassini–Huygens mission landed the Huygens probe on Titan in January 2005, the most distant landing in history, and Cassini's radar mapped the surface through Titan's thick haze. Titan has a methane cycle analogous to Earth's water cycle: methane evaporates, forms clouds, rains, and pools into lakes. NASA's Dragonfly rotorcraft (launch 2028) will fly between sites on Titan's surface.
How to view Titan in 3D
Titan orbits Saturn in real time inside the interactive viewer. Open the parent body to see the orbital geometry, or use the object browser to fly directly to the moon and observe its rotation, surface, and orbit.
Open the Saturn system →Sources & methodology
Numbers cross-referenced with the sources below; updated May 2026.