http://www.bbc.co.uk/news/science-environment-17225127
The article above discusses the recent discovery of a thin layer of oxygen that surrounds one of the icy moon's, Dione, orbiting Saturn. Even though Dione would most likely not have the ability to support life at this point in time, through further warming of the Solar System it may one day become an Earth like body. Since the time span necessary for this type of atmosphere to develop is quite long, scientists are looking to other moons orbiting the gaseous planet to satisfy their search for an Earth like planet. Thus far, Enceladus, the sister moon of Dione, is said to have a liquid ocean beneath its icy surface. Looking at the developments of the moons of gaseous planets, everyone should be excited to hear that some day many of the moons surrounding Saturn could turn out to share features with the Earth, and with some adaptation of our species, we could relocate ourselves when danger overcomes the Earth, or we may even witness new life appear on these moons as they develop. While these types of advancements may not help us now, they may provide security to future generations of humans as the generations leading up to them do not make sustainability of the Earth and its resources a priority.