The phenomenon when the earth’s light is reflected on the crescent or new moon. It’s also pretty spectacular. This was the night of Chris’s birthday party, down in Santa Cruz. When looking it up to make sure it was one word instead of two, I found “this cool article”:http://http://science1.nasa.gov/science-news/science-at-nasa/2002/12apr_earthshine/ from nasa. Totally worth reading for the description of what earthshine would look like from the dark side of the moon.
