As NASA's Cassini spacecraft turned its imaging cameras to Earth, some 200 engineers, scientists and visitors at NASA's Jet Propulsion Laboratory, Pasadena, Calif., waved at our robotic photographer in the Saturn system on July 19, 2013.

July 19, 2013

As NASA's Cassini spacecraft turned its imaging cameras to Earth, some 200 engineers, scientists and visitors at NASA's Jet Propulsion Laboratory, Pasadena, Calif., waved at our robotic photographer in the Saturn system on July 19, 2013. The Cassini mission gave Earthlings advance notice of its picture, marking the first time people knew in advance that their picture was being taken from interplanetary distances.

Credit: NASA/JPL-Caltech

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