sábado, 3 de maio de 2014

Um universo de mistérios

We’ve put men on the moon and car-sized robots on Mars. We’ve also discovered nearly 1,800 planets around other stars. It would be easy to think that we’ve got a pretty good handle on what’s out there. Then you find out that there’s a bizarre giant hexagon on Saturn, and you realize that we don’t understand half of what’s going on with our closest neighbors.
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