Here’s a wonderful image of Earth from NASA’s Suomi satellite, an image you can make considerably larger by clicking on it. But if you want the full Monty, and a fantastic screensaver, see the huge hi-resolution image here.
And be sure to take a look at Suomi’s Flickr gallery, which includes other pictures of Earth, and of the satellite’s construction and launch. Here it is in the lab:
Ah, what we hoomans are capable of!