On August 15, 1977, astronomer Jerry Ehman detected a mysterious 72-second radio signal from deep space that was more powerful than any previously detected signal, which he labeled 'Wow' in his data sheet; despite decades of searching with massive telescopes pointed at the exact same location, the signal has never returned and remains unexplained, representing one of history's most enduring cosmic mysteries.
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The WOW Signal: 72 Seconds From Deep SpaceAñadido:
On August 15th, 1977, astronomer Jerry Ehman was reviewing radio telescope data when he saw something impossible, a signal from deep space more powerful than anything they'd ever detected. He grabbed a red pen and scrawled "Wow" in the margin. The transmission lasted exactly 72 seconds, then it vanished. It didn't match any known satellite, any natural phenomenon, any earthly [music] source. Scientists have searched for decades, pointed massive telescopes at the exact same spot in space. Nothing.
The signal has never returned, and no one can explain what sent it. What was broadcasting from the depths of space that night?
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