The analysis of extraterrestrial phenomena is conducted in the framework of the scientific method as exemplified by the principles of physics. The evolution of stars and solar systems is discussed. Various branches and principles of physics, including electromagnetic theory, energy conservation, angular momentum and plasma physics, are used to estimate the probability of occurrence of those physical conditions favorable to life. The principles of mechanics, thermodynamics, electromagnetism, meterology and geology are employed to estimate the potential for the development of life. The radio telescope, the electromagnetic spectrum, quasars, pulsars, black holes, the binary code, Project Cyclops.
Astronomy provides the evidence for the likelihood of sunlike stars.
The abuse of scientific methodology employed by several popular authors is discussed. The implications of both special and general relativity on both communication and travel between possible civilizations are scrutinized. The difficulties of travel and space colonization, including the use of fusion or annihilation engines, are discussed from the viewpoint of the laws of mechanics and modern physics. An in-depth discussion of the evolution of the universe. The laws of physics are used to examine the validity of UFO reports.