Keiji Ohtsuki

Japanese researchers have revealed that Saturn's F ring and its shepherd satellites are natural outcome of the final stage of formation of Saturn's satellite system.

An enigmatic ring of icy particles circling Saturn, herded into a narrow ribbon by two tiny moons, was probably born of a cosmic collision, according to a study published Monday.

Japanese researchers have revealed that Saturn's F ring and its shepherd satellites are natural outcome of the final stage of formation of Saturn's satellite system.

An enigmatic ring of icy particles circling Saturn, herded into a narrow ribbon by two tiny moons, was probably born of a cosmic collision, according to a study published Monday.