:I disagree strongly with the assertion that Tellus is "more common" than Gaia. I've NEVER heard or read of Tellus used to mean Earth except in some Roman mythology stories, while I often encounter Gaia referring to the ecology or 'spirit' of Earth in popular, "green" and scientific/ecologic term (not that I agree that it is a scientific term). A google search of Gaia Earth gave me 159 million hits while Tellus Earth gives 102 million, most of the latter seem to refer to companies with that name.173.189.78.87