Shards of Earth: First in an extraordinary trilogy, from the winner of the Arthur C. Clarke AwardAdrian Tchaikovsky4.2
Speuren naar buitenaards leven: Een hoorcollege over onze kijk op het heelal, van de klassieke oudheid tot nuGovert Schilling4.4
Roswell: The Ultimate Cold Case; Eyewitness Testimony and Evidence of Contact and the Cover-UpDonald R. Schmitt4.1
Ancient Alien Question, 10th Anniversary Edition: An Inquiry Into the Existence, Evidence, and Influence of Ancient VisitorsPhilip Coppens4.5