Mathematics – Logic
Scientific paper
Sep 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pari.iafcr....w&link_type=abstract
International Astronautical Federation, International Astronautical Congress, 33rd, Paris, France, Sept. 27-Oct. 2, 1982, 5 p.
Mathematics
Logic
Biological Evolution, Biosphere, Extraterrestrial Life, Project Seti, Cosmic Dust, Gamma Ray Bursts, Lunar Gravitation, Meteorite Collisions, Radiation Effects
Scientific paper
The implications for SETI of recent investigations of biological evolution on earth are examined. It is concluded that the evolution of extraterrestrial life occured in conditions that were not identical with those on earth, although the differences are considered to pertain to minor changes in the basic chemical building blocks which probably belong to the same two types as on earth (i.e., nucleic acids and proteins). The most primitive forms of life should be similar throughout the universe, but divergences must occur during the course of evolution, in which the diversity of shape and form will be more pronounced than the differences in function. These cosmic factors that cause this diversity by affecting the development of the biosphere are examined, and their influence on SETI is discussed.
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