... Solar System . ... A record-breaking three of these planets are super-Earths lying in the zone around the star where liquid water could exist, making them possible candidates for the presence of life. ... Previous studies of Gliese 667C had found that the star hosts three planets ( eso0939 , eso1214 ) with one of them in the habitable zone. ... The Gliese 667C system is the first example of a system where such a low-mass star is seen to host several potentially rocky planets in the habitable zone. ...