The US space agency has brought into prominence a rare photo of the Earth and moon taken from the vantage point of the outer solar system, accompanied by Saturn's rings in the shot. Nasa said that the colour images were taken by Nasa's Cassini spacecraft at a distance of nearly 900 million miles (1.4 billion kilometres) away.

Following behind calling on Earthlings to wave at Cassini for the picture last week, Nasa said the chance to photobomb another planet drew 20,000 participants, even though the Earth appears as just a tiny particle in the final image. The July 19 Earth-imaging event marked the first time Earthlings had advance notice that their portrait was being taken from interplanetary distances.

(AW:Samrat Biswas)