America is no stranger to a host of strange and unexplained discoveries that span from ancient artifacts (hoax or history?) to baffling natural phenomena to conspiracy theories about places as benign ...

A team of astronomers have found a mysterious object in the distant universe that could be dark matter or an inactive smaller ...

In addition to the double ring, the program found two other examples. In RAD J122622.6+640622, astronomers saw a galaxy ...

The Roman Empire built 73 miles of wall to fortify its northern border in Great Britain. In AD 122, the Emperor Hadrian ordered its construction, and it remained the empire's border fortification for ...

The persistent human fascination with extraterrestrial life and the fundamental question of whether we are alone in the universe has driven countless investigations, theories, and debates throughout ...

"Massachusetts' Bridgewater Triangle is America's leading hotspot for all things unexplained," the Discovery Channel says.

A study in South Africa analyzed the helmeted guineafowl to discover how the iconic sub-Saharan bird manages extreme fluctuations in temperature. This brightly colored bird with a bony head protrusion ...