Visible in the early-morning sky today, Saturn’s two-toned moon Iapetus reaches superior conjunction just 1.4′ due south of Saturn. The proximity makes the now-11th-magnitude moon easier to find, as ...

Journey 1.5 billion kilometres to Saturn's most bewildering moon: Iapetus. This world of stark contrasts features a divided ...

Saturn’s two-faced moon Iapetus reaches its greatest western elongation today. At western elongation, the moon’s lighter hemisphere is turned toward Earth, making it brightest and easiest to ...

Over the last few years, the term “Goldilocks Zone” has become widely used to describe the range of distances from a star ...

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...

Skywatchers in central Wisconsin can expect a stunning week ahead, with planetary pairings, moon phases and celestial ...

The night side of Saturn’s distant moon Iapetus (912-mile diameter) photographed in Saturn-light. The spacecraft rotated to track Iapetus during the exposure, streaking out the images of background ...

The next full moon, the Buck Moon, peaks at 4:37 p.m. ET on July 10. It's named the Buck Moon because male deer antlers reach full growth in July.