Spoiler alert: In response to the question posed in the subtitle, the author says, definitely possible!
The introduction presents a provocative case for the existence of UFOs, with Navy pilots officially reporting sightings as recently as 2014, news eventually carried by major outlets. With recent advances in audio and video recording, many argue that credible evidence supports the existence of visitors from outer space. After providing a historical context (a Greek general named Timoleon spotted a hovering light in 343 B.C.E.), Marcovitz describes the work of modern UFO hunters like M.J. Banias, who works as an investigator for the Mutual UFO Network, and Chuck Zukowski, a sheriff in Colorado who examined mysteriously mutilated cattle carcasses. Popular culture has done much to bring speculation about alien visitors into the mainstream, from H.G. Wells to Close Encounters of the Third Kind and celebrities like Miley Cyrus sharing their experiences. Marcovitz presents many anecdotes, told with effective local color and convincing detail, like that of the discovery of a skeleton with a strangely elongated skull in the Atacama Desert of northern Chile or of an unusual rock in Antarctica, judged to be from Mars and containing evidence of fossils of living organisms. The author reports that although the scientific community is divided on this subject, enough people are convinced to ensure further research. Color illustrations and pithy sidebars enhance readability.
A lively, entertaining overview of the case for the existence of alien life.
(picture credits, source notes, further reading, index) (Nonfiction. 12-18)