Describes the Air Force base called Area 51 where the Air Force conducts secret tests that some people claim involve unidentified flying objects and aliens.
Provides an introduction to wormholes, discussing how fast light can travel, the possiblity of wormholes being used to travel from one galaxy to the next and more.
Provides an introduction to fault lines, examines the different types and how they create earthquakes, and explores some of the hotspots for earthquake activity.
An introduction to cloning that explains the science behind cloning cells, people, and animals and discusses its medical, legal, and ethical ramifications.