Discusses the phenomenon of unidentified flying objects, including notable sightings throughout history and possible explanations for them.
- ISBN10 0613361199
- ISBN13 9780613361194
- Publish Date 3 January 2001 (first published 6 May 1999)
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Language English