Welcome to Earth at Night!
The universe is 13.8 billion years old, contains two trillion galaxies, and more planets than we can count. So where is everybody? In this Science for Sleep Documentary, we explore the Fermi Paradox and every major theory explaining why the universe appears completely silent despite the overwhelming probability that intelligent life should exist elsewhere.
From the interstellar object 3I/ATLAS that passed through our solar system in 2025 to the heated scientific debate over potential biosignatures on exoplanet K2-18b detected by the James Webb Space Telescope, we cover the latest breaking discoveries alongside the deepest theories in astrobiology and the search for extraterrestrial intelligence.
We walk through the Drake Equation, the Great Filter hypothesis proposed by Robin Hanson, the Dark Forest Theory from Liu Cixin's Three-Body Problem, the Aestivation Hypothesis from Oxford, the Medea Hypothesis from Peter Ward, the Zoo Hypothesis, the Planetarium Hypothesis, Von Neumann probes, the Berserker Hypothesis, the Grabby Aliens model, the Rare Earth Hypothesis, the Transcension Hypothesis, the METI debate, and the role of artificial intelligence as a potential Great Filter for technological civilizations.
Topics covered: Fermi Paradox, Drake Equation, Great Filter, SETI, Breakthrough Listen, Dark Forest Theory, Oumuamua interstellar object, 3I/ATLAS comet 2025, K2-18b exoplanet biosignature, dimethyl sulfide JWST, James Webb Space Telescope, Wow Signal 1977, Fast Radio Bursts, Tabby's Star KIC 8462852, Aestivation Hypothesis, Transcension Hypothesis, Zoo Hypothesis, Planetarium Hypothesis, Von Neumann probes, Berserker probes, Grabby Aliens Robin Hanson, Medea Hypothesis Peter Ward, Rare Earth Hypothesis, METI messaging extraterrestrial intelligence, Kardashev Scale, Square Kilometer Array, Vera C. Rubin Observatory, Habitable Worlds Observatory, UAP Pentagon AARO reports, Avi Loeb, panspermia, astrobiology, exoplanet atmospheres, technosignatures, water worlds, Great Oxidation Event, Permian Triassic extinction, percolation theory galactic colonization
Watch until the end to hear the three possible answers to the greatest question our species has ever asked.
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