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Article #6535How much radiation can an organism survive? (Panspermia)
From: David M. Palmer
Date: Mon, 28 Dec 1992 22:58
Date: Mon, 28 Dec 1992 22:58
23 lines
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1343 bytes
The Panspermia hypothesis is that after life originates on one planet (or in a molecular cloud, or whatever) it can be transported by natural causes to other planets, so that life need be created only once per galaxy (or universe) in order to become widely distributed. People have found that microbes of some sort, when ensporulated (is that the right word? dormant anyway) are very resistant to radiation, and thus could make the trip from star to star, enter a sterile but nutritious environment, and start living, reproducing, evolving and generally creating a biosphere. I personally don't believe that this happens very often, but it's an intriguing idea. Anyway, does anyone have a reference for the work on the microbe spores? I am interested in exactly how much radiation these things can take. Thanks in advance. -- David Palmer palmer@alumni.caltech.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!elroy.jpl.nasa.gov!news.claremont.edu!nntp-server.caltech.edu!palmer From: palmer@cco.caltech.edu (David M. Palmer) Newsgroups: sci.space,sci.bio,sci.med.physics Subject: How much radiation can an organism survive? (Panspermia) Date: 28 Dec 1992 22:58:41 GMT Organization: California Institute of Technology, Pasadena Lines: 23 Message-ID: <1ho0r1INNsom@gap.caltech.edu> NNTP-Posting-Host: alumni.caltech.edu