07/27/2026
Why 100 Years of Signals Found Zero Aliens science and technology
In 1967, scientists at Cambridge listened to a signal pulsing every 1.33 seconds from deep space. For months, they believed it was our first contact with an alien civilization—coding it "Little Green Men 1."
It turned out to be a pulsar. But the mystery it opened up is far scarier.
For over 100 years, Earth has been broadcasting radio waves across a 100-light-year bubble containing 15,000 star systems. We've scanned thousands of exoplanets, searched for Dyson Spheres, and analyzed over 100,000 neighboring galaxies... and found absolute silence.
Where is everybody? In this video, we break down the Fermi Paradox, the Great Filter, the Zoo Hypothesis, and why the quietness of the cosmos might be the most terrifying truth of all.
---------------------------------------------------
TIMESTAMPS:
0:00 - The 1967 Cambridge Signal
1:05 - The Cosmic Lighthouse (Pulsars)
2:10 - Earth Has Been Screaming for 100 Years
3:20 - Searching 100,000 Galaxies for Dyson Spheres
4:30 - The Fermi Paradox Explained
5:15 - Theory 1: The Great Filter
6:10 - Theory 2: The Transcension Hypothesis
7:00 - Theory 3: The Zoo Hypothesis
8:00 - The Bizarre Case of 'Oumuamua
9:15 - Is Anyone Out There?
---------------------------------------------------
If you enjoyed this deep dive into deep space, hit the Like button and Subscribe for more space & science technology breakdowns!
Fermi Paradox, Great Filter, space technology, astronomy documentary, alien signal, SETI, Arecibo message, Dyson Sphere, Type II civilization, Type III civilization, Oumuamua alien probe, search for extraterrestrial intelligence, why haven't we found aliens, space mystery, physics explained, exoplanets habitable zone, James Webb Space Telescope, science documentary, space exploration, cosmic microwave background, astronomy 2026, universe simulator
FermiParadox