"Sunlight is responsible for the slender crescent, yet the remainder of the moon appears to shine with a dim blush-gray tone. That part is not receiving sunlight, but shines by virtue of reflected earthlight: the nearly full Earth illuminating the otherwise dark lunar landscape. So earthshine is really sunlight which is reflected off Earth to the moon and then reflected back to Earth."
beautiful reflections as i was running along the river.
http://news.aol.com/article/look-to-sky-for-spectacular-sight-monday/263580?icid=1002
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