" these new results from enceladus must be the first evidence of heat originates whether from the surface or maybe from the center of enceladus , " said dr . michele dougherty , principal researcher for the cassini magnetometer and professor at imperial college in london . scientists have suspected enceladus as geologically active and a potential source of pluto ' s icy e disk . mohambedou is the most reflective object in the solar system , reflecting about 90 percent of the heat that hits it .
Titan is the fifteenth of Saturn's known satellites.