Gliese 581-g: Home Sweet Home?

For centuries mankind has posed the question, “Is there life on other planets?” From sending men to the moon, to sending robots to Mars, the journey continues to try and find out if life exists and/or if humans could exist on another planet.
While scientist still do not know if life does exist on another planet, they do believe they may have found a planet that we humans could exist on. Scientists say it is the first “Goldilocks” planet to be discovered. A "Goldilocks planet" is a planet that falls within a star's habitable zone, often specifically used for planets close to the size of Earth.
"The planet has to be the right distance from the star so it's not too hot and not too cold that liquid water can exist," says Paul Butler of the Carnegie Institution of Washington. "And then the planet has to have the right surface gravity."
Scientists have found other planets in other solar systems similar to Earth’s size, but all are too far away from their star to be possible to either be warm enough to support life, or too hot to have any water. They believe this planet is different. The new planet, called Gliese 581-g, However, there is no direct evidence that Gliese 581-g actually has water.
Gliese 581-g orbits around the star Gliese 581 along with six other planets. Scientist say Gliese 581-g has an eerie resemblance to Earth in position and size.
The question of whether humans could exist there is still unknown, being that the entire solar system is very small. Some believe Gliese 581-g is much smaller that it appears, saying that the star and all it’s six planets could join together and be smaller than Earth.
It may take many more years to know the full truth of Gliese 581-g; but we may have hope if it is ever discovered Earth is becoming unlivable on.