Humanity waves at Saturn as Cassini snaps historic pic

Late last month, the Cassini spacecraft captured a remarkable photograph of the Earth and Moon as seen from Saturn. The event coincided with a project called "The Day The Earth Smiled" in which participants from 40 countries took photos of themselves waving at the ringed planet. The results have now been assembled into… » 8/22/13 6:30am 8/22/13 6:30am