Chloe Smith had been flying from the UK to France when she spotted what she believed to be a spirit.
The unknown strain of bacteria, which exists nowhere on Earth, was found aboard China's Tiangong space station.
Efforts to detect unidentified aerial phenomena remain ongoing at one of America's most prestigious universities.
The 22-year-old, who hails from Australia, is suffering from a mystery ailment that doctors have been unable to explain.
Congressman Tim Moore recently posted a video showing a secret staircase leading down into a hidden tunnel.
Someone or something was seemingly lurking in a remote drainage ditch in the early hours of the morning.
Exactly what happened to the 118 colonists who settled on Roanoke Island in the late 1500s has long remained a mystery.
Two competing theories of consciousness were pitted against one another as part of a multi-year research effort.
Poland-based firm Volonaut has invented a remarkable new hover bike that doesn't use propellers to stay in the air.
Viral CCTV footage shows the moment a factory robot suddenly freaks out and starts flailing around madly.
A retired flight surgeon maintains that he saw a secretive saucer-shaped vehicle belonging to the US Air Force.
New research has revealed just how little we actually know about what lurks in the depths of the world's oceans.
Ever had the feeling that something you are experiencing is new or 'alien', even when it shouldn't be ?
Recent claims concerning the habitability of distant extrasolar worlds have been met with skepticism.
The document pertains to a secretive remote-viewing experiment designed to gain intelligence on military targets.
A new bill will make it illegal for aircraft to release any sort of chemicals for the purpose of geoengineering.
Veteran UFO researcher Jacques Vallee maintains that there have been several cases of aliens killing humans.
For a long time, people believed that the bumps on someone's head could yield information about the brain.
A man from Solihull, England recently got more than he bargained for when he tried to replace his stolen vehicle.
Gladiatorial combat often saw participants pitted against wild beasts as well as human combatants.