A passing star may have kicked the weird moons of giant planets like Jupiter and Saturn into place, new research suggests.

Starstruck Billions of years ago, our Solar System may have had an incredibly close encounter with another passing star. As ...

including Saturn's moon Phoebe, whose orbit is retrograde and unusually distant. Neighboring gas and ice giants Jupiter and Neptune are replete with such moons, too. According to this hypothesis ...

Conveniently, the encounter could also explain some of our Solar System's irregular moons, including Saturn's moon Phoebe, whose orbit is retrograde and unusually distant. Neighboring gas and ice ...

His first important work was the calculation of the first reliable orbit of Saturn's moon Phoebe in 1905, and he also calculated orbits for Jupiter's satellites Himalia and Elara. When working for ...