Are we alone? : philosophical implications of the discovery of extraterrestrial life /
Davies, P. C. W.
Harmondsworth : Penguin Books,
1995.
'... based on lectures given at the University of Milan, 8-9 November 1993, in the series Lezione Italiane, sponsored by the Fondazione Sigma-Tau, and published in the Italian language by Laterza'
Cosmology.
Life on other planets.
Science