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Proceedings Paper

Carbonaceous chondrites as bioengineered comets
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Paper Abstract

The discovery of microfossils on carbonaceous meteorites has electrified the public with the first concrete evidence of extraterrestrial biology. But how these organisms colonized and grew on the parent body–the comet–remains a mystery. We report on several features of cyanobacteria that permit them to bioengineer comets, as well as a tantalizing look at interplanetary uses for magnetite framboids that are found in abundance on carbonaceous chondrites. We argue that these structures provide important directionality and energy harvesting features similar to magnetotactic bacteria found on Earth.

Paper Details

Date Published: 15 October 2012
PDF: 16 pages
Proc. SPIE 8521, Instruments, Methods, and Missions for Astrobiology XV, 85210N (15 October 2012); doi: 10.1117/12.930061
Show Author Affiliations
Robert B. Sheldon, Grassmere Dynamics LLC (United States)
Richard Hoover, NASA Marshall Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 8521:
Instruments, Methods, and Missions for Astrobiology XV
Richard B. Hoover; Gilbert V. Levin; Alexei Yu. Rozanov; Paul C. W. Davies, Editor(s)

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