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cold-scale · green2021cold

Revision 3a9c2b62-b4f5-4b4a-8303-be761de78c11 · 11/5/2026, 11:07:41 PM UTC
Citation
green2021cold
Claim ID
cold-scale
Assertion
Many past claims of life detection later proved incorrect or ambiguous, such as the 1996 report of possible fossils in the Martian meteorite ALH84001. The authors propose a seven-level Confidence of Life Detection (CoLD) scale: the lowest levels cover the first identification of a possible biosignature; higher levels require corroboration by independent lines of evidence and ruling out alternative, non-biological explanations.
Quote
history includes many claims of life detection that later proved incorrect or ambiguous
Quote language
en
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