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It was discovered on October 19th, 2017 and it was recognized as the first known object of its type. It is unique since it is the first known object that came from outside our solar system. But while we observed it, the mystery surrounding it grew.
11 minutes
Deep in the mountains of West Virginia, the Green Bank Observatory has been receiving a mysterious signal from deep space. Could this be a message from an advanced civilization, or is it a much stranger and violent occurrence? Visit the largest steerable radio telescope on the planet for answers.
10 minutes
What do you get when you combine a passion for tiny-house living with cutting-edge green technology? Designer Graham Hill converts a small shed in Hawaii into the ultimate eco-friendly tiny house and a blueprint for sustainable home design.
13 minutes
Current research in nutrition points to our diet as the most important factor in continued good health and longevity. Doctors, chefs, and nutritionists show us how going green with fresh ingredients and flavors in our daily meals will improve our health.
14 minutes
The I-400 was one of the Imperial Japanese Navy's Sen Toku-class submarines, which were the largest submarines ever built before the age of nuclear-powered subs. These massive vessels were longer than a football field and were used as submarine aircraft carriers.
16 minutes
A mysterious World War II wreck is discovered off the coast of Italy by archeologists. Could this be the wreck of the long lost U-455, the last missing German U-boat?
12 minutes
During World War II, the submarines of the Free French Naval Forces scoured the Atlantic to neutralize the Nazi Navy. Discover the forgotten ships that made possible the liberation of France.
12 minutes
A team of maritime archaeologists descends 700 feet off the coast of North Carolina in search of the U-576, a German submarine that went down in a historic 1942 battle, possibly trapping 45 Nazi sailors inside.
20 minutes
Israeli defense experts shed light on advances in artificial intelligence and machine learning in the military defense sector.
10 minutes
Wildlife tracker Tyler Johnerson explores the deadly rivalry that's developed between native mountain lions and reintroduced wolves in Yellowstone National Park.
11 minutes
An alien world of bizarre creatures exists in the surface film of most lakes and ponds - tiny insects, with incredible capabilities, locked in a life and death struggle to survive.
18 minutes
