Teilhard de Chardin's notions of the "Noosphere" and the "Omega Point" are explored in the context of current knowledge and theory, especially J.E. Lovelock's conception of "Gaia" - planet Earth as a superorganism. Space-faring humans are seen as the "seeds" or dispersal agents of Gaia's reproductive phase, carrying Earth-life into the Galaxy. "Noah's Ark" is a vision of the future, not the past.