According to the U.N., most of us live in cites rather than rural regions. The switchover arrived in 2007. Which brings up the rural night’s main illumination – the Moon. We now know that lunar brightness doubles 2.5 days before Full Moon, which is a big deal if you need a little extra light to complete outdoor rural work. After all, a Half Moon is only a tenth as bright as a Full Moon, not enough to be fully useful.