This close pairing of Janus and Epimetheus shows the two moons at “high phase,” meaning that only a thin sliver of sunlit terrain is visible on each moon. Portions of each are also lit feebly by ...

A new diffuse ring, coincident with the orbits of Saturn's moons Janus and Epimetheus, has been revealed in ultra-high phase angle views from Cassini. The new ring is visible in this image (marked by ...

Outside the soft edge of Cassini’s F ring, Epimetheus and Janus negotiate their nearly-shared orbit. The two moons’ orbits are typically about 50 kilometers (30 miles) apart, and the moons actually ...

It is possible for two objects to share the same orbits, but not the exact same orbit. Saturn’s moons Janus and Epimetheus run on orbits that differ in size by only 30 miles (50 km). This similarity ...

The Cassini spacecraft just had a few close encounters with some of the odder moons in the Saturn system… and given how weird Saturn is, that’s saying something. I was particularly enthralled with ...

With a radius of 90 kilometers, Janus is a runt amongst the moons of Saturn. But Janus has something the other moons do not, a friend! Sharing Janus' orbit around Saturn is Epimetheus, which is ...