In 1972 Astronauts on the United States's last lunar mission, Apollo 17, took this picture looking back at the Earth on their way to the moon. The continents of Antarctica and Africa are visible below the delicate wisps of white clouds.
For more information see NASA NSSDC press release. Astronomy Picture of the Day is brought to you by Robert Nemiroff and Jerry Bonnell. Original material on this page is copyrighted to Robert J. Nemiroff and Jerry T. Bonnell.
Media Credits & Attribution
NASA, Apollo 17, NSSDC