Absence of Liquid Water
Apparent lack of liquid water on Titan's surface has been cited by NASA astrobiologist Andrew Pohorille as an argument against life there. Pohorille considers that water is important not only as the solvent used by "the only life we know" but also because its chemical properties are "uniquely suited to promote self-organization of organic matter". He has questioned whether prospects for finding life on Titan's surface are sufficient to justify the expense of a mission which would look for it.
Read more about this topic: Life On Titan
Famous quotes containing the words absence of, absence, liquid and/or water:
“Vulgarity cannot exist in the absence of loftier values. Once it has affected the latter, however, it wants to absorb them. Unless you want to be as weak and small as human beings, you had better stay away from them.”
—Franz Grillparzer (1791–1872)
“We want in every man a long logic; we cannot pardon the absence of it, but it must not be spoken. Logic is the procession or proportionate unfolding of the intuition; but its virtue is as silent method; the moment it would appear as propositions and have a separate value, it is worthless.”
—Ralph Waldo Emerson (1803–1882)
“Telephone poles were matchsticks, put there to be snapped off at a whim. Dogs trotting across the road were suddenly big trucks. Old ladies turned into moving—vans. Everything was too bright, but very funny and made for my delight. And about half a mile from my long liquid breakfast I turned carefully down a side street and parked, and sat beaming happily through the tannic fog for about an hour, remembering how witty we all had been, how handsome and talented ... [ellipsis in original]”
—M.F.K. Fisher (1908–1992)
“It is with artworks as it is with wine: it is much better when we do not need either one, when we stick with water, and when out of our own inner fire, the inner sweetness of our own soul, we turn the water over and over again into wine ourselves.”
—Friedrich Nietzsche (1844–1900)