Red Web Wow! Signal | We Caught a 72-Second Signal From Space, Then It Disappeared
Mar 23, 2026
Alfredo Diaz, a conversational co-host who reacts and asks sharp clarifying questions. They unpack the 1977 72-second Wow! Signal detection. Short scenes cover the hydrogen-line frequency, where in the sky it appeared, technical decoding of the printout, and leading explanations from comets to engineered beams and gravitational lensing.
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72 Seconds Matches Telescope Motion Not Source Length
- The 72-second duration equals Big Ear's maximum dwell time as Earth rotated the sky through its fixed feed.
- Because the signal filled the entire dwell period and formed a bell curve, it suggests a steady celestial source rather than a brief burst.
Bell Curve Strength Points To Localized Celestial Source
- The bell-curve signal strength as the source swept through Big Ear's beam indicates a localized celestial origin.
- That shape is what you'd expect when a fixed-width beam passes a compact emitter in the sky.
Scintillation Could Twinkle Radio But Doesn't Fully Fit
- Interstellar scintillation can twinkle radio signals as they pass turbulent plasma, possibly altering detectability across telescopes.
- But Big Ear's unique detection and absence on more sensitive arrays makes scintillation an incomplete explanation.