While space may not be the “final frontier,” it’s definitely the next. What will it take for humans to have an enduring presence in space and when will new exploration begin? We’ll discuss these questions and more this hour with George Whitesides, Executive Director of the National Space Society (NSS) and XM Co-Founder and NSS Board of Governors Member Lon Levin. They’ll both participate in this weekend’s 26th Annual International Space Development Conference in Dallas. This year’s theme is “From Old Frontiers to New: Celebrating 50 years of Space Flight.”