The solar system called Gleise 667C is much like our current solar system with 7 planets of which three are believed to be Super Earths. This means that they have water like Earth but is much larger. The ability of humans to live on such planets or whether they already contain life is unknown. However, someday out there in infinite space will be a planet we may be able to colonize.
The solar system is also 22 light years away from us. This means that it is closer to use than originally believed. Many scientists have been using high powered telescopes to watch plants from further systems. Having habitable planets in our neighborhood is a benefit to us. It may someday be possible to finding something we can work with.
One has to wonder if these concepts are simply a matter of long math problems. Let us assume that the chance of the Earth to be formed is a random event such as one in a billion or one in a trillion. This would mean that if space is infinite than there must be an infinite amount of earths out there just waiting for us to discover. It would mean that these would be randomly located based upon their probability. Who knows?
If one were sitting on the newly discovered planets they would see two suns during the day and would see these stars as about the strength of the moon during the nighttime. Because these planets are in the habitable zone they may have liquid water. Too far away and it would freeze and too close it would dissipate. When the star is dimmer than the sun the distance issue can change the habitable orbit width.