Titanian Clouds and Surface

Caption NASA originale:"This image composite contains a radar image taken during a February 2005 (T3) flyby, and overlaid are images from the Visual and Infrared Mapping Spectrometer (VIMS) taken on Sept. 7, 2006, (T17) and Oct. 25, 2006 (T20).
The thin strip is the infrared image taken on the inbound leg of the T20 flyby and crosses the radar image near an area with a small, crater-like feature. In the radar image a faint fan of material seems to originate at the crater and the portion of the infrared image that crosses the faint fan shows both a large brightness contrast and very sharp boundaries. The fan-like deposit has such sharp boundaries and strong contrast with its surroundings that it supports the idea that the deposit seen in the radar images is a flow of material erupted from the small crater. This may be the strongest evidence yet of cryovolcanism on Titan.
The infrared image was taken at a distance of about 1100 Km (680 miles) from the surface of Titan and resolves features as small as 400 mt (1300 feet)".