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Astrobiology

Why We Should Be Wary Of The Putative K2-18b Extrasolar Biosignature
Potential biosignature sparks debate over life on exoplanet K2-18b


‘Extraordinary claims require extraordinary evidence’ − an astronomer explains how much evidence scientists need to claim discoveries like extraterrestrial life
K2-18b: Potential life signature detected, but skepticism remains

New analysis casts doubt on 'biosignatures' found on planet K2-18b
Doubt cast on life detection claim on exoplanet K2-18b; further analysis needed.


Curiosity rover makes ‘arguably the most exciting organic detection to date on Mars’
NASA Curiosity finds largest organic molecules on Mars yet, hinting at past life potential.
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