Anticipating the Future
Our material universe, as best we can tell, is around 13.7 billion years old. Our Solar System has existed for about a third of that time. Thus, the possibility that life has had much longer than we have had to evolve in other regions of the cosmos is obvious. But has it, and is it still there?
KeywordsSolar System Central Star Habitable Zone Chemical Building Block Rocky Planet
Unable to display preview. Download preview PDF.
- 1.Schulze-Makuch D. and Irwin L. N. (2008) Life in the Universe: Expectations and Constraints. Springer-Verlag, 2nd ed.Google Scholar
- 2.Adam, R. M. 1991. The biology of Giardia spp. Microbiol. Rev. 55: 706-732.Google Scholar
- 3.Ward P. D. and Brownlee D. (2000) Rare Earth: Why Complex Life Is Uncommon in the Universe. Springer-Verlag, New York.Google Scholar
- 5.Clark, A. 2003. Natural-Born Cyborgs: Minds, Technologies, and the Future of Human Intelligence. New York: Oxford Univ. Press.Google Scholar
- 6.Ward, P. 2001. Future Evolution. W. H. Freeman.Google Scholar
- 7.Hawkins, J. and Blakeslee, S. 2005. On Intelligence. New York: Henry Holt.Google Scholar