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.
Highlights
- ›Ruling these out is the hardest part of the search
Worlds, missions & methods
Knowledge connections
- Member of groupBiosignature Science
- Associated withSpectroscopy
- Associated withVenus
Sources
The primary and reference sources this topic draws on.
- 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.