NASA’s Cassini spacecraft is going to make one of its most important flybys of its entire mission this week, zipping past Saturn’s moon Iapetus on September 10th, 2007. I’m calling it “most important”, not NASA, but trust me, this is a big one. I’ve got two reasons for this: it’s the first time Cassini will … Continue reading Cassini’s Upcoming Visit to the Walnut, Iapatus