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Dr. Peter Schubert discusses the use of solar powered satellites and lunar-based manufacturing facilities to beam solar power to Earth via microwaves. Dr. Schubert discusses the economics of this type of facility. He also describes his invention, the isotope separator, and why this is so important for solar powered satellites. In addition to this being a technical discussion, we also talk about the politics and social implications of being able to integrate space solar power with our terrestrial energy grid.