An in-depth study of alien abductions, examining legends, popular reports, and scientific evidence that supports or refutes the mysterious phenomena.
An historical account of extreme weather events and climate patterns, including human events leading up to observable changes, the people involved in studying trends, and the lingering aftermath.
A historical account of the Human Genome Project, including the events that made genome sequencing possible, the people involved, the competition between public and private sectors, and the ways in which its effects are felt today.
A look at the causes and global effects of the 1969 moon landing, which led to further space exploration and eventually encouraged international cooperation rather than competition.
A look at a common food chain in the Rocky Mountains, introducing the ponderosa pine tree that starts the chain, the mountain lion that sits atop the chain, and various animals in between.
An account of espionage during the modern age, including famous spies such as Dayna Williamson Baer, covert missions, and technologies that influence the course of present-day conflicts.
A helpful guide for understanding the mathematical concepts and real-world applications of graphs and diagrams, including classroom tips, common terms such as variables, and exercises to encourage hands-on practice.
An in-depth look at the people and policies behind the government agency known as the NTSB, from its founding in 1967 to the controversies and challenges it faces today.