Even if Titan is a "only" a moon (the second largest after Ganymede), it appears to be the 
most terrestrial object in our solar system: Its size, the dense nitrogen atmosphere and a 
methane-based meteorological cycle as well as the simililarities to the supposed conditions 
of prebiotic Earth caused Titan to be the focus of one of the most ambitious space missions. 
January 2005, the Huygens probe landed successfully on Titan's surface, marking the 
furthermost pilotless landing ever achieved so far. The carrier spacecraft Cassini is still 
orbiting Saturn, and in total 45 Titan flybys have been scheduled until nominal mission end 
in 2008. I will summarize results of the ESA coordinated ground-based observing campaign to 
complement the Huygens landing, and then focus in more detail to adaptive-optics supported 
observations with the VLT. Of particular interest are synergies arising on the study of 
surface composition and atmosphere, combining ground and space mission data.