Titan

Of Saturn's satellites, Titan is the largest; it is also the sole moon known to carry a substantial atmosphere.[3]

History

Titan was first sighted by Christiaan Huygens, on March 25, 1655.[3]

Findings

Nitrogen makes up most of Titan's atmosphere, with methane as a smaller component.[3] Titan's surface has lakes and seas containing methane and ethane in liquid form.[3] JPL reports Titan's mean radius as 2,574.76 kilometres.[1] Mapped named terrain on Titan includes seas, lakes, and mountains.[2]

Sources

  1. Solar System Dynamics: Physical Parameters. Licence: facts-only (Track B), no text reused. Attribution: NASA/JPL-Caltech.
  2. Titan target | USGS Gazetteer of Planetary Nomenclature. Licence: US federal work, public domain (17 USC 105). Attribution: U.S. Geological Survey.
  3. Titan: Facts | NASA Science. Licence: facts-only (Track B), no text or images reused. Attribution: NASA.

Evidence as of 2026-11-01.