NASA's Blue Marble: 50 Years Of Earth Images
March 12, 2012 10:00 AM NASA's Earth-observing satellites help scientists render photo-like composite images with unprecedented detail. Take a look, from the earliest attempts to the newest stunners.
First Image Of Earth
The TIROS-1 satellite took this image on April 1, 1960. It was the first television picture of Earth from space. TIROS-1, operational for 78 days, delivered thousands of pictures for global weather analysis. Credit: NASA