In this rare image taken on July 19, 2013, the wide-angle camera on NASA’s Cassini spacecraft has captured Saturn’s rings and our planet Earth and its moon in the same frame.  The earth is the blue dot at the bottom right of the image. Photograph: NASA/JPL-Caltech/Space Science Institute

A pale blue dot. This is what we look like from Saturn all of 1.5 billion kms away, along with our moon appearing as a second white dot nearby.Nasa’s (...)