unidentified flying objects

Reviews reports from around the world of possible UFO sightings, mostly from the 1950s through 1970s, and discusses studies and research projects on the topic.

Describes unidentified flying objects, the history of UFO sightings, and the controversy there is about them.

Presents the mystery of UFOs, including current theories and famous sightings.

Presents an examination the phenomena of unidentified flying objects and encounters with alien beings, in simple text with illustrations, and contains real-life stories from people who have allegedly seen them.

Ten-year-old Cam, possessor of a photographic memory, and her friend Eric investigate what seems to be a brief appearance of UFOs.

Describes some of the sightings reported about mysterious and sometimes unexplained objects in the skies.

Explores the possibility of life on other planets, covering such topics as our exploration of space, reports of UFO sightings and alien abductions, and famous extraterrestrials from movies and television.

Discusses the debate over whether unidentified flying objects really exist and how belief in them affects our culture.

Examines incidents involving reported sightings of unidentified flying objects and meetings with aliens, describes how people react in these situations, and discusses how the authorities are investigating.