False positive · Biosignature Science

Biosignature False Positive

A signal that mimics life but is made by non-living processes — abiotic oxygen from water splitting, geological methane, or a mis-measured spectral feature. Ruling out false positives is the hardest and most important part of any claim of life; the Venus phosphine debate is a recent lesson.

Biosignature Science

Highlights

›Ruling these out is the hardest part of the search

Spectroscopy
Venus

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Member of groupBiosignature Science
Associated withSpectroscopy
Associated withVenus

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Facts on this topic will be cited from these primary and reference sources.

NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.

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Biosignature False Positive

Highlights

Worlds, missions & methods

Knowledge connections

Sources

Biosignature False Positive

Highlights

Worlds, missions & methods

Knowledge connections

Sources