Skip to main content Accessibility help

Extraterrestrial Civilizations

  • J. C. Ribes (a1) and F. Biraud (a2)


The subject of extraterrestrial civilizations is relevant to astronomy in two ways. Firstly, the very existence of life outside Earth is dependent upon the picture that astronomers can draw of the Universe, and we will see how that picture allows us to be very optimistic. Then, if we think that there are intelligent beings in space, the detection of signals from them is an astronomical problem, and we will see that it most probably concerns radio astronomers.



Hide All
1 Hoyle, F., ‘The Black Cloud’, Penguin, Harmondsworth 1957.
2 Cameron, A. G. W., ‘Interstellar Communication’, p. 21.
3 Struve, O., Astrophys. J., 72, 1 (1930).
4 Strand, K. A., Astr. J., 61, 319, (1956).
5 Van de Kamp, P., Astr. J., 68, 7 (1963).
6 Rees, M. J., Trimble, V. L. and Cohen, J. M., Nature, 229, 395 (1971).
7 Calvin, M., ‘Chemical Evolution’, ‘Interstellar Communication’, p. 33.
8 Fox, S. W. (ed.), ‘The Origins of Prebiological Systems’, Academic Press, New York 1965.
9 Kvenvolden, K. et al, Nature, 228, 923 (1970).
10 Physics Today, Feb. 1971, p. 17.
11 Von Hoerner, S., ‘Interstellar Communication’, p. 272.
12 Shklovsky, I. S., ‘Interstellar Communication’, p. 272.
13 Purcell, E., ‘Interstellar Communication’, p. 121
14 von Hoerner, S., ‘Interstellar Communication’, p. 144.
15 Weber, J., Phys. Rev. Letters, 25, 180 (1970).
16 Oliver, B. M., ‘Interstellar Communication’, p. 207.
17 Schwartz, R. N. and Townes, C. H., ‘Interstellar Communication’, p. 223.
18 Drake, F. D., ‘Interstellar Communication’, p. 165.
19 Oliver, B. M., ‘Interstellar Communication’, p. 294.
20 Drake, F. D., ‘Interstellar Communication’, p. 176.
21 Cocconi, G. and Morrison, P., ‘Interstellar Communication, p. 160.
Biraud, F. and Ribes, J. C., Le Dossier des Civilisations Extraterrestres, Fayard, Paris 1970.
Cameron, A. G. W., ‘Interstellar Communication’, Benjamin Inc., New York 1963.
MacGowan, R. A. in ‘Advances in Space Science and Technology’, Vol. 4, Academic Press, New York 1962, p. 51.
Shklovsky, I. S. and Sagan, C., ‘Intelligent Life in Universe’. English trans., Holden-Day, San Francisco 1966.
Tovmasyan, G. M., ‘Extraterrestrial Civilizations’, Byuryakan 1964. (English trans., Israel Program for Sci. Trans., Jerusalem 1967. NASA Tech. Trans. F-438.)

Extraterrestrial Civilizations

  • J. C. Ribes (a1) and F. Biraud (a2)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed