"Stories of alien encounters and mysterious objects in the sky have fascinated humans for years. But do beings from other worlds really exist? Take a look at the evidence and decide for yourself"--Provided by publisher.
Explores the idea that there are other beings than humans in the universe and that they have visited Earth throughout the history of mankind, discussing UFOs, alien abductions, crop circles, possible alien influence on early cultures, and more.
Describes how people search for unidentified flying objects, examines reportedly true stories of sightings of UFOs, and discusses related topics such as crop circles.
"Engaging images accompany information about Area 51. The combination of high-interest subject matter and light text is intended for students in grades 3 through 7"-- Provided by publisher.