Most stars in the Milky Way Galaxy are accompanied by one or more planets, according to a new study. In addition, the research finds that alien worlds are often found within the habitable zone of their solar systems, where liquid water is most likely to exist. This finding, if confirmed, could suggest that alien life may be more common than many astronomers currently believe.
Many astronomers believe that alien life is most likely to develop on worlds that are within the so-called Goldilocks Zone from their parent stars. These are the range of distances where temperatures are neither too hot nor cold for water to exist.