Planets Temperature Just Right For Life?

Astronomers say they have found a planet suitable for life. They have named it the "Goldilocks" planet. The planet is orbiting a star a mere 20-light years away. They say it is a possibility that this planet can have life because it is not too hot nor too cold, its just the right temperature. Because of this liquid water can exist, however, the planet must also have the right surface gravitiy.