SpaceSaturn gains 128 moons, giving it more than the other planets combined Saturn has dozens of new moons, bringing it to a total of 274. All of the new moons are between 2 and 4 kilometres wide, but at what point is a rock too small to be a moon? News
SpaceBepiColombo snaps Mercury's dark craters and volcanic plains The BepiColombo spacecraft is due to start orbiting Mercury next year, but a recent flyby has captured breathtaking images of its pockmarked surface News