Could there be another Earth?

From the Daily Mail:
The Kepler orbiting observatory was launched with a simple mission - to find other Earths. NASA describes it as 'a search for habitable planets.'

And analysis of its first 136 days of data has already begun - with scientists combing through scans of 150,000 stars, and evidence of 1,235 potential planets.

Such information is fascinating in itself - but it also allows scientists to work out projections using statistical analysis.

One analysis has predicted that one-third of 'sun-like' stars - stars with the classification F, G or K - will have planets similar to Earth.

Could there be another Earth? Scientists predict that one-third of 'sun-like' stars might have Earth-like planets
Rob Waugh
30th September 2011
http://www.dailymail.co.uk/sciencetech/article-2043445/Scientists-predict-sun-like-stars-Earth-like-planets.html