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Can spores survive in interstellar space?
External Online Source: doi:10.1038/316403a0
Author and Affiliation:
Weber, P.(Leiden Univ., Netherlands)
Greenberg, J. M.(Leiden, Rijksuniversiteit, Netherlands)
Abstract: Experimental evidence is presented for the effects of very low temperature and UV radiation, characteristic of the interstellar medium, on the survival of bacteria. In the most general space environment, 10 percent survival times are only of the order of hundreds of years, too short for panspermia to work. In a substantial fraction of space within dark clouds, however, it is shown that, even with conservative figures, survival times as long as millions to tens of millions of years are attainable. In such conditions, clouds could transport organisms from one solar system to another in times significantly shorter than the mean survival time. This occurs with significant probability.
Publication Date: Aug 01, 1985
Document ID:
19850062238
(Acquired Nov 28, 1995)
Accession Number: 85A44389
Subject Category: SPACE BIOLOGY
Document Type: Journal Article
Publication Information: Nature (ISSN 0028-0836); 316; 403-407
Publisher Information: United Kingdom
Contract/Grant/Task Num: NGR-33-018-148
Financial Sponsor: NASA; United States
Organization Source: Leiden Univ.
Description: 5p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CHEMICAL EVOLUTION; EXOBIOLOGY; FAR ULTRAVIOLET RADIATION; INTERSTELLAR SPACE; PANSPERMIA; RADIATION DAMAGE; SPORES; BACTERIA; CRYOGENIC TEMPERATURE; HIGH VACUUM; MOLECULAR CLOUDS; STELLAR RADIATION
Imprint And Other Notes: Nature (ISSN 0028-0836), vol. 316, Aug. 1, 1985, p. 403-407.
Availability Source: Other Sources
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