A while ago, I had the opportunity to observe Earthshine on the crescent moon. It started me thinking on how the FE model explains why the dark side of the Moon appears so dark. Around the time of a crescent Moon, the reflected light from the landmasses, oceans and clouds on most of the day-side part of the planet would be shining on the Moon, and you would expect such a huge area to outshine a small 50 km wide ball of a sun.