ANOTHER EXO-PLANET IN 'GOLDILOCKS' ZONE

A planet has been discovered only 12 light years away from Earth, in the 'inhabitable' or 'Goldilocks' zone, where liquid water is possible, circling a single sun-like star named Tau Ceti.
http://www.bbc.co.uk/news/science-environment-20770103

The total number of exo-planets discovered is now 854. It looks ever more likely that earth-like planets abound in our galaxy.