What is Galactic habitable zone?
'''Galactic habitable zone''' is a [[habitable zone]] in [[astronomy]] and [[astrobiology]], where life is most likely to occur in any [[galaxy]]. The concept of a habitable zone uses many things, like [[Metallicity|metalicity]], presence of [[Chemical substance|chemicals]] that life requires, and uses these to find out which regions of a [[galaxy]] are more likely to form [[Terrestrial planet|rocky planets]], that can develop simple life, and provide a suitable environment for this life to evolve and grow. According to research published in August 2015, very large galaxies may favor the development of habitable planets more than small [[Galaxy|galaxies]] like the [[Milky Way]]. [[Category:Astrobiology]] [[Category:Astronomical phenomena]]