The largest, brightest full moon in nearly seven decades started to show on Tuesday evening over Europe, Latin America, the US and the Middle East. This year, the supermoon was expected to come nearer to Earth than at any time since 1948, astronomers have said. A supermoon occurs when the timing of a full moon overlaps with the point in the moon’s 28-day orbit that is closest to Earth, and about every 14th full moon is a supermoon. If skies are clear, this time the full moon will appear up to 14% bigger and 30% brighter than usual, according to Nasa