2025 research reveals why we haven't detected aliens: civilizations may evolve past detectable phases in mere decades, radio-bright galaxies hide signals in noise, and we're searching the wrong spectrum with outdated tools.
Scientists are using AI, machine learning, and advanced telescopes to search for alien technosignatures across radio, optical, and infrared wavelengths. New techniques include hunting for megastructures around distant stars and analyzing millions of signals for patterns that indicate technological civilizations.
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