The so-called "supermoon" failed to make much of an appearance in the gloomy skies across Britain Saturday night, but elsewhere on the planet, people were treated to a spectacular sight. The rare phenomenon sees the Moon appear substantially larger than normal as it reaches its closest point to the earth. Known to astronomers as a perigee full moon, it appears 14 percent larger and 30 percent brighter than one at its further point away from our planet.