What is the role of space exploration in the modern world? -- Humanity should begin planning for interstellar space travel / NASA should continue to receive funding / NASA and the federal government waste taxpayer money / Space tourism needs an "orbital megabus" to truly lift off / Space tourism is not worth the human risk / Where in space should humans explore? -- Humans should colonize Mars / Should we colonize the Moon? And how much would it cost? / Humans should resume exploring the Moon and outer space / Humans should begin efforts to colonize Venus / What are the politics of space exploration? -- Private industry is the future of space exploration / Privatized space exploration has disadvantages and benefits / The United States should reignite the space race / The United States should invest in oceans before space / China's space program threatens the United States / China's space program does not threaten the United States / What is the science behind space exploration? -- Nuclear power is the spacecraft fuel of the future / Nuclear power in space is dangerous / Life could exist elsewhere in the universe / Human hibernation could benefit space travel / Human hibernation can benefit space travel but presents numerous challenges / 3-D printing could revolutionize space exploration in the near future