Revelle, R. Sailing in new and old oceans. A. I. B. S. Bulletin, v. 12, Oct. 1962:
45-47.
If modern theories aboi;t the format!on of star::; are correct, probably the great
majority of stars have planets around them. On at least some of these, life may
have evolved in a beneficent realm of light and liquid water and in an atmosphere
of oxygen and nitrogen to a level as high and perhaps much higher, than the
highest life known on earth. Communication with intelligent beings in planets of
other stars would be alma;t impossible because cf the distance involved.
Ross, John C. A scieatist looks at life on other worlds. Fate, v. 12, Apr. 1959:
86-89.
Nobel prize winner Dr, Melvin Calvin asserts that life is inevitable on other
worJds throughout the universe and that we may expect to find life forms more
intellectually developed than man.
Rublowsky, John. Is anybody out there? New York, Walker and Co., 1962. 118 p.
Surveys recent findings in biology, physics, and astronomy and focuses them
on question of whether life exists in the universe.
Rush, Joseph H. Life the universe. In The dawn of life. Garden City, N. Y.,
Hanover House, 1957. p. 188-217. -
Appraisal of the possibility of life on the solar planets and beyond the solar
system.
Sagan, Carl. On the origin and planetary distribution of life. Radiation research,
v. 15, Aug. 1961: 174-192.
Author discusses current opinion and speculation concerning the origin an<l
early history of life on earth, with particular emphasis on the role that
radiation may have played, and with application to the problem of extra-
terrestriai life.
-----. Tile quest for life beyond the earth. In Smithsonian Institution. Annual
report of the board of regents for the yearending June 30, 1964. Washington,
D. C., U.S. Govt. Print. Off., 1965. p. 297 .. 306.
Questions on the possibility of extraterrestrial life and the origin of life are
discussed and alternative interpretations of available data given.
8hapley, Harlow. Extraterrestrial life. Astronautics, v. 5, Apr. 1960: 32-33, 50,
52.
It is postulated that homo sapiens as a species may be unique, but there is good
reason to expect that there are habitable planets with higher forms of life in
other sola1· syste'lls.
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