Personally, I think Iapetus is a better match, from the right angle. Even if Mimas is closer in size. And, of course, theories abound that Iapetus is artificial, like the Death Star. But that's getting into sci-fi territory....
Personally, I think Iapetus is a better match, from the right angle. Even if Mimas is closer in size. And, of course, theories abound that Iapetus is artificial, like the Death Star. But that's getting into sci-fi territory....