A team of astronomers have been busy discovering moons this week, adding one more moon to Saturn, and six new moons to Jupiter. These add to the other 12 moons of Jupiter already discovered this year, bringing the moon count for Jupiter to 58 and Saturn to 31.
The flurry of moon discoveries is being attributed to the increased sesitivity of telescopes, as some of these moons are as small as 1km in size. Under current definitions, even a pebble in a regular orbit could be considered to be a moon. These definitions may need to be revisited soon.