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- Path: 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
-
- 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
-