Earthshine: The Old Moon in the New Moon’s Arms 🙂
☆ Earthshine is the glow that lights up the dark part of the moon. It comes from sunlight reflected off the earth. Leonardo da Vinci described it 500 years ago, realizing that both the earth and the moon are lit by the sun. Earthshine is most intense in the Northern spring (starting now). Astronomers study Earth’s “albedo” (the technical term for reflectivity) to gauge changes in cloud cover and climate.
☆ This picture was taken on Nowruz, the March 20 equinox,from Esfahan, Iran, planet Earth, and is today’s Astronomy Picture of the Day.
For more APOD pictures: http://apod.nasa.gov/apod/ap120324.html
H/T to Bill Noble for sharing the link! Coincidentally, Laura Gibbs just posted the fable of Selene and Endymion. “Selene is the Greek word for “moon,” and Endymion was her lover.” To see a lovely image, and a beautiful Keats quote, go to:https://plus.google.com/u/0/111474406259561102151/posts/QCN4t7PgWQt