Bizarre Mysteries That Remain Unsolved to This Day

Wow! Signal

In 1977, astronomer Jerry Ehman used a radio signal detector to scan the stars around the constellation Sagittarius. Ehman picked up a 72-second radio frequency that appeared to be coming from deep space. He wrote "Wow!" in the margin of his computer printout, leading the bizarre sound—which is theorized to be aliens attempting contact—to be dubbed the Wow! Signal.

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The More You Know

  • Roughly 600 Parisians work at the Eiffel Tower each day.
  • A team of six women programmed the first digital computer.
  • You can buy a completely renovated and converted Boeing 727 jet that accommodates 23 people for less than the cost of a Ferrari.
  • The people who are currently alive are only 7% of the total number of people who have ever lived.
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