See that teeny tiny little blue and white smudge of a pixel? That's Earth. That's home. That's us. Everyone who's ever lived, all of our history, and most of our forseeable future is contained in that little dot. Cassini took this picture (actually a mosaic of 141 images acquired over a period of about four hours) from "behind" Saturn, looking back towards the inner solar system, and the bit where you can see the Earth and the Moon is just a subset of the full image, which also contains pixel versions of Mars, Venus, and a flock of moons. You can see the image below, but you'll want to follow this link to get an appropriately gigantic (and legible) version.
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