November 3, 2025
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9:46Now PlayingIn this conversation, Neil deGrasse Tyson and Jill Tarter discuss how detectable Earth might be to alien civilizations and the challenges of making ourselves more noticeable — including the immense cost, technical difficulties, and unintended consequences of actively sending signals or constructing megastructures. They also explore the ethical and political complexities humanity would face upon discovering intelligent extraterrestrial life, noting that moral frameworks for interaction would likely emerge from global religious and cultural perspectives rather than from science itself.
From 'The Search for Aliens with SETI CoFounder, Jill Tarter'
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