Testing evolutionary convergence on Europa

Details Testing evolutionary convergence on Europa Testing evolutionary convergence on Europa

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ijasb...2..307c&link_type=abstract

International Journal of Astrobiology, vol. 2, Issue 04, p.307-312

Biology

1

A Europan Biosphere, Biomarkers For Evolutionary Convergence, Electrophysiology Of Ionic Channels, Evolution Of Intelligent Behaviour, Life Detection In Our Solar System And Beyond.

Scientific paper

A major objective in solar system exploration is the insertion of appropriate biology-oriented experiments in future missions. We discuss various reasons for suggesting that this type of research be considered a high priority for feasibility studies and, subsequently, for technological development of appropriate melters and submersibles. Based on numerous examples, we argue in favour of the assumption that Darwin's theory is valid for the evolution of life anywhere in the universe. We have suggested how to obtain preliminary insights into the question of the distribution of life in the universe. Universal evolution of intelligent behaviour is at the end of an evolutionary pathway, in which evolution of ion channels in the membrane of microorganisms occurs in its early stages. Further, we have argued that a preliminary test of this conjecture is feasible with experiments on the Europan surface or ocean, involving evolutionary biosignatures (ion channels). This aspect of the exploration for life in the solar system should be viewed as a complement to the astronomical approach for the search of evidence of the later stages of the evolutionary pathways towards intelligent behaviour.

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