It's a good photo, but I would have prefered a link to the original, more informative, page here<p><a href="http://www.msss.com/mars_images/moc/2003/05/22/" rel="nofollow">http://www.msss.com/mars_images/moc/2003/05/22/</a><p>Google Images is great for checking this sort of thing<p><a href="http://images.google.com/images?hl=en&source=hp&q=earth+jupiter&btnG=Search+Images&gbv=1" rel="nofollow">http://images.google.com/images?hl=en&source=hp&q=ea...</a>
I find the picture fascinating. Not so much that both planets are in the same shot, but just how big Jupiter appears in the same frame as Earth. Jupiter is roughly 8x the distance from Mars as Earth is from Mars (I think) but Jupiter appears so much larger in the picture. It gives a great perspective on just how big that planet is.
If I had the money, I'd pay the trillion dollars it would take to fly to Mars (and not die on the way) just to get a view like that, not to mention being on a planet with two visible moons.