Hubble's Expanding Universe
Until Edwin Hubble's discoveries in 1924, astronomers thought that our Milky Way galaxy was the entire universe. Hubble provided a model of a larger universe beyond our galaxy and an expanding universe. Since then, the Hubble telescope has allowed us to view galaxies farther and farther away and introduce ideas beyond our comprehension nearly a century ago. This seems an appropriate model for the expanding universe of learning that is provided by technology. Technology has provided us with an expanding view of our personal and collective adult learning universe. It has provided expanded access to information and increased opportunities for communication. This chapter explores how our learning communities can span our neighborhood, field of interest, and the globe.