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Edit: The Search for Extraterrestrial Life: Where Are They?
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Edit: The Search for Extraterrestrial Life: Where Are They?
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# Are We Alone? The Quest for ET ## The Fermi Paradox The universe is vast and ancient, with billions of galaxies and trillions of stars. Given the sheer number of potentially habitable planets, why haven't we found any evidence of extraterrestrial civilizations? This is the essence of the Fermi Paradox. ### Possible Solutions Scientists propose various solutions, including the "Great Filter" (a barrier that prevents life from reaching advanced stages), the idea that civilizations are too far apart, or that they simply don't last long enough to be detected. ## SETI and Beyond The Search for Extraterrestrial Intelligence (SETI) has been actively listening for signals from space for decades. Beyond radio astronomy, new approaches involve looking for technosignatures (evidence of technology) or biosignatures (signs of life) in exoplanet atmospheres. ### The Future of the Search With advancements in exoplanet detection and space-based telescopes, the coming decades promise exciting opportunities to further explore the possibility of life beyond our home planet.
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