12 moons discovered around Jupiter, say scientists – including one 'oddball' that could destroy the others

Scientists have found 12 new moons orbiting around Jupiter, in a breakthrough discovery about our mysterious neighbour. They include an object that scientists have referred to as an "oddball". It is just one kilometre in size, and is flying in the opposite direction to many of the planet's moons – and behaves in an entirely different way to any of the other 78 objects orbiting the planet. As such, it might be responsible for having smashed up many of the other objects that make up the moons around Jupiter. Scientists think the vast number of objects orbiting the planet are probably the result of collisions earlier in its life, which have been captured by Jupiter and now continue to orbit it.