Titan As Seen by Cassini-Huygens Mission. Titan, main Saturn's moon, is seen here for the first time in details by NASA/ESA/Italian Space Agency Cassini-Huygens mission. Cassini-Huygens is on its way to a comprehensive study of Saturn world and after having yielded en route pictures of the ringed planet, it sent back this picture which is one of the two he took of Titan. Titan is by far Saturn's largest moon and will be the object of Huygens dedicated mission. This part of the probe will descend into Titan's atmosphere in January 2005. Titan is believed to have keys in its atmosphere to how organic molecules are turning into biomolecules hence allowing to understand what are life's early processes. What is seen of Titan's surface by Cassini-Huygens is matching previous 1997-1998 work (bottom) by Hubble's Near Infrared Camera and Multi-Object Spectrometer (NICMOS). Methane falling from Titan atmosphere unto moon's surface might have created hydrocarbons lakes and oceans. Cassini-Huygens is reaching Saturn's orbit next July, 1st. picture © site 'Amateur Astronomy', based on a picture courtesy NASA/JPL/Space Science Institute