Is it alien life, or just ethane? Scientists reassess Webb Telescope discovery
undefined 30, 2025
Excitement over possible signs of life on exoplanet K2-18b has cooled. A new University of Chicago study says the molecule detected by the James Webb Space Telescope—once thought to be dimethyl sulfide, linked to life—could actually be something more common, like ethane. The team found the data too noisy to support the original claim. Scientists urge caution, saying more evidence is needed before making bold declarations about alien life.
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