It’s a UFO! It’s a walnut? No … It’s Pan, one of Saturn’s weirdest-looking moons by Alan Boyle on March 10, 2017March 10, 2017 at 3:27 pm Astronomers have long known that Pan, one of the “shepherd moons” in Saturn’s rings, had a weird shape. But it took this week’s high-resolution images from the Cassini orbiter to… Read More