UFO
Category: The UFO Phenomenon
Abbreviation for Unidentified Flying Object.

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UFOlogist
Category: The UFO Phenomenon
An individual involved in the investigation and study of the UFO phenomenon.

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UFOlogy
Category: The UFO Phenomenon
The field of study pertaining to the Unidentified Flying Object (UFO) phenomenon. UFOlogy concerns the investigation of reports and collation of evidence for UF...

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Unidentified Flying Object
Category: The UFO Phenomenon
Any object in the sky that can not be identified. The term ( or UFO for short ) is used primarily in reference to the phenomenon of mysterious objects, lights a...

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Uranus
Category: Space & Astronomy
Seventh planet from the Sun and one of the four gas giants in our solar system. It was discovered in 1781 by William Herschel. Its atmosphere consists primarily...