Earth the Blue Marble
This amazing "blue marble" picture of Earth is the most detailed true-color image of the entire planet to date. Using a collection of satellite-based observations, NASA scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet.
To download this image, select the image size you wish to download by clicking the links below and then follow your Web browser's procedures for saving the image. For Internet Explorer, simply right-click the image and select "Save Picture As..." to save the image to your computer. You can also choose "Set as background" to set the image as your computer's background image.