What exactly was the “Wow!” signal?

Everyone loves a good mystery, especially when it's real.

The Strangest Unexplained Phenomena in History

Science & Industry

E veryone loves a good mystery, especially when it's real. Of the countless happenings that have confounded us through the years, decades, and centuries, some mysteries have endured longer than others. Here are four unexplained phenomena throughout history that we may never fully understand, but will always be fascinated by.

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