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What Will Life Off-Earth Look Like? | Chris Impey | TEDxUofA
TEDx Talksยท 2025-08-08 15:26
Space Travel Industry Overview - Space travel currently has a 3% death rate, comparable to wingsuit flying or base jumping [2] - The cost of space travel is decreasing due to reusable rockets, with Apollo launches costing approximately $5 billion each and space shuttle launches costing $500 million each [4] - Civilian astronauts have already been in orbit and performed spacewalks, indicating a shift towards broader participation in space exploration [5] Future Prospects and Challenges - Space exploration is driven by human curiosity and the "explorer gene," pushing us beyond Earth [6][7] - Concerns exist regarding the high costs of space travel and the need to address pressing issues on Earth, such as clean water access for 3 billion people [8] - Potential risks of space travel include radiation exposure during long journeys, such as an 8-month trip to Mars [9] - Earth orbit is becoming more accessible, with potential for orbiting hotels and spas, although accommodations may be cramped [11][12] Long-Term Vision - Establishing a colony on Mars could lead to the evolution of a new human species due to a small gene pool [9] - The development of a space elevator could drastically reduce the cost of getting into orbit, potentially to almost zero [14] - A space elevator could also facilitate the removal of toxic and radioactive waste from Earth [15] Accessibility and Impact - Space travel is becoming more accessible, potentially costing no more than a luxury cruise within a decade [16] - Experiencing Earth from space can provide a life-changing "overview effect," fostering a sense of unity [13]