Why Are Craters on Saturn's Moons Vanishing? - Printable Version +- AlienBabelTech Forums (http://alienbabeltech.com/forum) +-- Forum: Social (http://alienbabeltech.com/forum/forumdisplay.php?fid=3) +--- Forum: Off Topic (http://alienbabeltech.com/forum/forumdisplay.php?fid=4) +--- Thread: Why Are Craters on Saturn's Moons Vanishing? (/showthread.php?tid=855)

Why Are Craters on Saturn's Moons Vanishing? - BoFox - 10-16-2015 http://news.discovery.com/space/why-are-craters-on-saturns-moons-vanishing-photos-151007.htm The above pic is on Saturn's largest moon (Titan), bigger than Mercury and nearly as big as Mars.  Even Mimas's massive crater is being rapidly "erased" (scroll the pictures with captions for more info). Sexy image: 3-D rendered art If "billion(s)-year-old" craters are vanishing within a matter of years, wouldn't the occurrence of cratering impacts have to be at least million times higher for there to still be craters, at that rate? RE: Why Are Craters on Saturn's Moons Vanishing? - SteelCrysis - 10-17-2015 The craters in the first photo are not the same, the ridge lines near them are at different distances from the craters. RE: Why Are Craters on Saturn's Moons Vanishing? - BoFox - 10-17-2015 Ahh, thanks for the correction. Well, it's still an enigma to the scientists as to Mimas, Tethys, and Dione: http://www.sciencedirect.com/science/article/pii/S0019103511001734 BTW, the crater on Mimas (like the Death Star in Star Wars) seems far too large for the tiny moon to have remained intact if it were a head-on collision. Strange stuff.