" these new conclusions from cassini must be the first evidence of chemicals arriving either from the surface or possibly from the interior of enceladus , " said dr . michele dougherty , principal scientist for the spacecraft magnetometer and director at merton college in london . scientists have suspected enceladus as igneous present and a possible source of orion ' s metallic a ring . enceladus is the most reflective item in the solar system , reflecting about 90 minutes of the sunlight that hits it .
Titan is the fifteenth of Saturn's known satellites.