Co-hosts Eleanor O’Rangers and Tom Hill continue their interview of fellow co-host Emily Carney about Gerard K. O’Neill, theoretical physicist and space futurist who she has written about in her National Space Society blogs. First, we’ll discuss O’Neill’s entrepreneurial ventures into space solar power and pioneering work in GPS that lead to the launch of Geostar satellites. Then, we’ll conclude the episode with a transition to the origins of the Space Studies Institute and L5 Society.