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Detection of circular polarization in light scattered from photosynthetic microbes
(2009-05)
The identification of a universal biosignature that could be sensed remotely is critical to the prospects for success in the search for life elsewhere in the universe. A candidate universal biosignature is homochirality, ...
Circular polarization in scattered light as a possible biomarker
(2009)
Biological molecules exhibit homochirality and are optically active. Therefore, it is possible that the scattering of light by biological molecules might result in a macroscopic signature in the form of circular polarization. ...
Astrobiological signatures: prospects for the detection of non-terrestrial biological material
(2007)
The possibilities for detecting non-terrestrial biological material are briefly reviewed in light of the flurry of extrasolar planet detections over the last ten years and the forthcoming space missions designed to search ...