Signatures of a Shadow Biosphere
Graduate studies at Western
|Abstract||Astrobiologists are aware that extraterrestrial life might differ from known life, and considerable thought has been given to possible signatures associated with weird forms of life on other planets. So far, however, very little attention has been paid to the possibility that our own planet might also host communities of weird life. If life arises readily in Earth-like conditions, as many astrobiologists contend, then it may well have formed many times on Earth itself, which raises the question whether one or more shadow biospheres have existed in the past or still exist today. In this paper, we discuss possible signatures of weird life and outline some simple strategies for seeking evidence of a shadow biosphere. Key Words: Weird life—Multiple origins of life—Biogenesis—Biomarkers—Extremophiles—Alternative biochemistry. Astrobiology 9, 241–249.|
|Keywords||No keywords specified (fix it)|
No categories specified
(categorize this paper)
|External links||This entry has no external links. Add one.|
|Through your library||Only published papers are available at libraries|
Similar books and articles
Charles S. Cockell (2006). The Ethical Relevance of Earth-Like Extrasolar Planets. Environmental Ethics 28 (3):303-314.
Carol E. Cleland (2007). Epistemological Issues in the Study of Microbial Life: Alternative Terran Biospheres? Stud. Hist. Phil. Biol. And Biomed. Sci 38 (4):847-61.
Heejong Woo (2008). Individuality of life from emergence in the network of biosphere. Proceedings of the Xxii World Congress of Philosophy 44:143-150.
Carol E. Cleland (2012). Life Without Definitions. Synthese 185 (1):125-144.
Michael Coenen, The Significance of Signatures: Why the Framers Signed the Constitution and What They Meant by Doing So.
Emily C. Parke (2013). What Could Arsenic Bacteria Teach Us About Life? Biology and Philosophy 28 (2):205-218.
Carol E. Cleland (2013). Pluralism or Unity in Biology: Could Microbes Hold the Secret to Life? Biology and Philosophy 28 (2):189-204.
István Aranyosi (2010). The Nature of Shadows, From Yale to Bilkent. Philosophy 85 (332):219 - 223.
Added to index2010-12-22
Total downloads3 ( #213,563 of 739,319 )
Recent downloads (6 months)1 ( #61,243 of 739,319 )
How can I increase my downloads?