num_pages: 192
description: From cave paintings to the 20th century, evidence exists for strange craft visiting the Earth. This scientifically-based survey of UFOs looks at the technology, physics and chemistry involved, from the original "flying saucers" of the 1940s to crop circles in the 1990s.
language: English
title: Unidentified Flying Objects
titlecomplete: Unidentified Flying Objects (UFO Files)
ratings_count: 7
publisher: Blandford/Sterling Publ. (London/NY)