Thank you, silylene.<br /><br />The University of California at Santa Cruz press release, which I believe is linked above, noted that Dr. Agnor was going to model other possible capture scenarios. I think Titan is a Lagrangian, so I looked at the Saturn system on Wikipedia so see if there is any possible scenario, and this time I decided to jump the gun a little.<br /><br />If you look at the masses of Saturn's moons (see "Wikipedia - Saturn", they have a nice table there), you will see that Tethys, Dione, Rhea, and Iapetus have similar masses. I was thinking that perhaps Iapetus, with it's very far out orbit, might have been flung out to slow Titan down. So I modeled it.<br /><br />I copied Mimas, Enceladus, Tethys, Dione, and Rhea by copying their orbits and masses onto Gravity Simulator, along with the mass given for Saturn with it being the central object. Iapetus, however, was given a circular orbit with an altitude of 739,000 kilometers, as if it were a Galilean moon. At this point, the Saturn system looked like a smaller version of the Jupiter system, having four large moons plus debris (Mimas and Enceladus).<br /><br />I then put Titan on a very eccentric orbit which receded out to almost 40,000,000 kilometers and came in about 750,000 kilometers on closest approach. Although this put Titan below escape velocity, it did allow me to put the machine on "don't plot" and go off and read Yahoo! News and Uplink forum. I checked back every few minutes.<br /><br />What I was doing here was a preliminary simulation, just to see what happened. I was looking for changes in Iapetus' orbit. After 162 simulated years, Iapetus had assumed an elliptical orbit of about 730,000 x 930,000 km. So far, so good. I was thinking that a really close encounter with Titan would fling Iapetus out to a pretty far distance.<br /><br />Instead, Titan ate Iapetus! I didn't see the event because I was reading about Ahamdi-Najad's letter in Free Space. But I could tell because I had given