Saturn surpasses Jupiter to become new moon king

Washington: Saturn now has 82 moons – three more than Jupiter’s 79 moons – and each of the 20 newly-discovered Saturn moons is about five kms in diameter.
A team led by Scott S. Sheppard from Carnegie Institute of Science found 20 new moons orbiting Saturn. Seventeen of them orbit the planet backwards, or in a retrograde direction, meaning their movement is opposite of the planet’s rotation around its axis.
The other three moons orbit in the prograde — the same direction as Saturn rotates.
Two of the prograde moons are closer to the planet and take about two years to travel once around Saturn.
The more-distant retrograde moons and one of the prograde moons each take more than three years to complete an orbit.
“Studying the orbits of these moons can reveal their origins, as well as information about the conditions surrounding Saturn at the time of its formation,” said Sheppard.