#Space: Researchers: Newly found planets might support life

Astronomers now are upping that likelihood, announcing that they've identified a star system with up to seven planets -- three of which could potentially host life -- 22 light-years away.

The likelihood that conditions could support life on at least one of those planets, given that there are three terrestrial-mass planets in the habitable zone of one system, is "tremendous," according to at least one scientist. The "habitable zone" is the area near a star in which a planet can theoretically hold liquid water. In our own solar system, Venus is close to the inner edge of potential habitability, while Mars is closer to the outer edge.