Picture of the Day – April 22, 2010
HAPPY EARTH DAY!
NASA: This image from Apollo 17, and others like it, captured whole hemispheres of water, land and weather. This photo was the first view of the south polar ice cap. Almost the entire coastline of Africa is visible, along with the Arabian Peninsula.
via NASA: Exploring the Whole Earth
Every day at 5pm the Sifter will post the picture of the day