In case anyone has forgotten, this is where all of us humans live. A small planet near the outer end of one of the spiral arms of the "Milky Way" galaxy. It´s an unusual planet because it has a "biosphere".That is, a thin, enveloping, "shell" which makes the kind of "life" we humans enjoy (or not) possible. We share this highly improbable home with many other lifeforms organic and inorganic, it´s an incredibly complex and beautiful system. A system which should inspire awe and respect among the "intelligent"species living here. Among humans this is not always the case.