A Non-Earthcentric Approach to Life Detection

Details A Non-Earthcentric Approach to Life Detection A Non-Earthcentric Approach to Life Detection

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001asbio...1...15c&link_type=abstract

Astrobiology, Volume 1, Issue 1, pp. 15-24.

Biology

13

Life Detection, Biosignatures, Chemical Fossils, Astrobiology

Scientific paper

The ultimate goal of a comprehensive life detection strategy is never to miss life when we encounter it. To accomplish this goal, we must define life in universal, that is, non-Earthcentric, measurable terms. Next, we must understand the nature of biosignatures observed from the measured parameters of life. And finally, we must have a clear idea of the end-member states for the search-what does life, past life, or no life look like (in terms of the measured parameters) at multiple spatial and temporal scales? If we can approach these problems both in the laboratory and in the field on Earth, then we have a chance of being able to detect life elsewhere in our solar system. What are the required limits of detection at each of those scales? What spatial, spectral, and temporal resolutions are necessary to detect life? These questions are actively being investigated in our group, and in this report, we present our strategy and approach to non-Earthcentric life detection.

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