Cassini probe sights moon target
Xanadu appears as the brightest surface feature
The Cassini-Huygens mission has caught sight of Saturn's largest moon, Titan.
The first images of the object, which is believed to support oily lakes and seas, pick out broad features previously seen by Earth telescopes.
Over the next two months, the cameras on Cassini will take progressively more detailed pictures of a surface that is shrouded by a very thick atmosphere.
In January, the Huygens probe will be released and plunge down on to Titan - perhaps to splash down in a sea.
The moon is nearly the size of Mercury at 5,100km (3,200 miles) across.
The images were taken in mid-April, from a distance of more than 40m km.
http://news.bbc.co.uk/1/hi/sci/tech/3693721.stm