Habitable Zones in the Universe

Habitable Zones in the Universe. By Guillermo Gonzalez. Origins of Life and Evolution of Biospheres. September 1, 2005. (PDF)

Comments: 71 pages, 3 figures, 1 table.

Habitability varies dramatically with location and time in the universe. This was recognized centuries ago, but it was only in the last few decades that astronomers began to systematize the study of habitability. The introduction of the concept of the habitable zone was key to progress in this area. The habitable zone concept was first applied to the space around a star, now called the Circumstellar Habitable Zone. Recently, other, vastly broader, habitable zones have been proposed. We review the historical development of the concept of habitable zones and the present state of the research. We also suggest ways to make progress on each of the habitable zones and to unify them into a single concept encompassing the entire universe.

Other writings by Guillermo Gonzalez:

Gonzalez, Donald Brownlee and Peter D. Ward, Refugees for Life in a Hostile Universe, Scientific American, October, 2001.

Guillermo Gonzalez, Donald Brownlee, Peter Ward. "The Galactic Habitable Zone I. Galactic Chemical Evolution." Icarus, Vol. 152(1):185-200; July 1, 2001.

Guillermo Gonzalez and Jay W. Richards. Good reason to shoot for the moon. Seattle Post-Intelligencer. Jan 21, 2004.

Guillermo Gonzalez, Alien Intelligences, Think Again. (Space.com). February 29, 2000.

Guillermo Gonzalez. The controversy over ID at ISU. http://telicthoughts.com/?p=291

Guillermo Gonzalez. Letter: Don’t Restrict the Direction of Research. Iowa State Daily. Aug 26, 2005.

Other comments related to the findings of Dr. Guillermo Gonzalez can be found at my:

Critical Analysis of Evolution

http://www.discovery.org/scripts/viewDB/filesDB-download.php?command=download&id=875