Looking for a sky event this week? Check out our full Sky This Week column. September 4: Get in a workout Titan, Saturn's ...

Saturn’s four brightest moons are lined up for ideal viewing this evening. You can catch the ringed planet for a few hours after sunset, as it slowly sinks toward the western horizon. Around 7 P.M.

Saturn’s two-toned moon Iapetus is now halfway between its eastern and western elongations. Heading toward the latter, which it will reach in just a few weeks, the moon sits 1.9’ due north of Saturn ...