But there's a rarer sight on display: Saturn's moon Iapetus, now roughly 11th magnitude and about 1' southwest of the planet. Tomorrow, Iapetus will be less than an arcminute due south of the ...

"For instance, Enceladus, a moon of Saturn with significant geological ... looking for past evidence of rings, such as Iapetus' ridge. Meanwhile, he and his colleagues are broadening their search ...