Steve, you don’t make any sense at all.<br /><br /><i>The problem is that of the false analogy. Taking liquid water events at or above the melting point of water and then tranferring such well defined events & terrminologies to the unknown and not at all defined surface of Titan at Minus what, 180 C? And with no water, and a messy mixture of methane + GOK, a heavy nitrogen atmosphere & occ. comet impacts and some infalling mass from the rings not to mention an occ. . burp of ice crystals from Enceladus.....</i><br /><br />First of all the surface of Titan is not unknown. We know that the surface is solid, is composed of bedrock and loose materials and a wide range of landforms, some familiar, some not.<br /><br />Second, there is water on Titan, most of it is solid. Heat flow and density data makes it almost certain that some form of liquid water occurs as depth.<br /><br /><i>What are those surface features? Well, most will wait for Cassini 2, or 3 and 4 and some more long lasting probes to find out more. & at LEAST one, well observed, high velocity, thermolytic, impact event, which would likely tell us more in 30' than ALL those lo res images....</i><br /><br />You don’t seem to understand how science works. You formulate hypotheses on the data to hand and then test those against new observations. Some, perhaps most. will be proved wrong, others will withstand criticism. Nobody is doing to wait until your imaginary Cassini 2, 3, or 4 to start this process. Scientists always formulate and test hypotheses from the moment we start collecting data which in the case of planetary science starts with telescopic observations. <br /><br />Do you really think that the mission scientists are going to tell the politicians, bureaucrats, and taxpayers of the US and Europe that after more than a billion dollars and Euros invested that they don’t have any conclusions to draw?<br /><br />You also don’t seem to understand the wealth of data that Cassini and Huygens are generat <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em> Arthur Clarke</p> </div>