On August 25, 1977, Dr. Jerry Ehman detected an odd radio signal that appeared to be of alien origin. He circled the signal and wrote “Wow!” next to it. Now, almost 35 years later, mankind is finally preparing a definitive response to the Wow Signal. Replying to the Wow Signal? National Geographic has a new…
In 1526, Hernán Cortés wrote about a fabled lost city. Generations of scholars have considered it a myth. But now, a new expedition may be on the verge of proving otherwise. Did the lost city of Ciudad Blanca really exist? The Mysterious Lost City of Ciudad Blanca? In 1526, Cortés wrote his fifth letter to…
Some 4,000 years ago, the mighty Harappan civilization accounted for 10% of the entire global population. Suddenly, this once-great society collapsed. What happened to the Harappan civilization? Why did the Harappan Civilization Collapse? The Harappan, or Indus, sprouted up 5,200 years ago. It grew into an ancient powerhouse, covering a massive area of 386,000 square miles,…
On June 30, 1908, something exploded over what is now Krasnoyarsk Krai, Russia. Bluish light stung the sky and loud sounds filled the air. A shock wave knocked people askew and shattered windows for hundreds of miles. What was the Tunguska Event? What was the Tunguska Event? While the Tunguska Event is a source of intense…
Jack the Ripper is the most famous serial killer of all time. For over a century, scholars have searched for his true identity. But were they searching for the wrong type of person? Was Jack the Ripper really…Jill the Ripper? Who was Jack the Ripper? The true extent of Jack the Ripper’s murder spree remains…
In 1912, antique book dealer Wilfrid M. Voynich purchased a strange unreadable manuscript near Rome. Despite a century of efforts, it has defied all code-breaking attempts. What is the Voynich Manuscript? The Mysterious Voynich Manuscript? At this very moment, a conference is underway in Rome, a sort of 100-year celebration of Voynich’s purchase. Various experts…
In 1915, construction workers made a startling discovery in Vero Beach, Florida. Did ancient Americans live alongside mammoths? Did they hunt these and other giant extinct creatures from the Pleistocene epoch? When did Ancient Americans reach the Americas? According to the International Union of Geological Sciences, the Pleistocene epoch started 2,588,000 years ago and ended…
In 1590, John White led an expedition to the New World to resupply the English colony on Roanoke Island in what is now North Carolina. But to his surprise, he found the area deserted. What happened to the Lost Colony? The Lost Colony of Roanoke? The disappearance of the 119 colonists (including Virginia Dare, the…