My Summary of "A distant Earth-like exoplanet 'could have life'"

  In the universe, there is a Earth-like exoplanet which is just discovered by scientists.  This exoplanet planet named Gliese 581g and locates 20 light-year away in its star "Goldilocks zone."  The researchers from UCSC and Carnegie Institution of Washington have been studying a star named Red Dwarf near by Gliese 581g for 11 years.  Right now, Gliese 4581g is the planet that scientists found most Earth-like.  The mass Gliese 581g has a mass that is three to four times of Earth.  Gliese 581g orbits its sun in 37 days, and it is  a rocky world.  However, the average surface temperature of the planet is estimated about -12c to -31c.  The scientist has found nearly 500 other worlds other than our Solar System.  More information on http://www.bbc.co.uk/news/science-enviroment-11444022