A planet only 12 light years away is now believed to be able to sustain life. It seems to not be too cold or to warm to support life. It revolves a star called Tau Ceti along with 4 other planets. They say it is around 5 times larger than our planet. They have expectations that some day not too far away, we will be able to travel that distance. But this is not the only possible sustainable planet. There is a planet 22 light years away that is generally around 0 degrees fahrenheit. They also believe that due to the discovery of these life sustaining planets, one day we will find intelligent life.