On the possibility of extraterrestrial life

Abstract

Scope and Method of Study: This report attempts to review various theories concerning the origin of the universe (our Sun and solar system in particular), the origin of the Earth, the origin of terrestrial life, possible sites for extraterrestrial life and the possibility of life evolving in other parts of the universe by a survey of the current literature dealing with these questions.

Findings and Conclusions: Many of the stars probably have an associated system of planets. Some of these planets must occupy a position in relation to their star which produces physical conditions suitable for the evolution of life. Thus there exists many possible sites where extraterrestrial life may be found.

The search for extraterrestrial life, the prime objective of space biology, has begun. Project Ozma was an attempt to detect signals from other intelligent beings located in other parts of the universe. The search is directed toward Mars at present. The findings there will probably help decide in what part of the universe the next search will be conducted.

Indications are that life must exist somewhere in the universe other than on our planet. It is thought that we may have the answer to this question of. extraterrestrial life by the beginning of the twenty-first century.