“With billions of galaxies in the known universe, each containing billions of stars, what do you think the odds are that other life forms exist somewhere out there? Probably pretty good. But where do you begin this cosmic search? It could be a class called Habitable Worlds, which is offered fully online at Arizona State University, and which has already been taken by more than 1,000 students. The simulations, lectures and assignments are pulled together using an internet-based learning platform developed by an Australian startup company, Smart Sparrow.”
