Tessa Fisher
Tessa Fisher is an astrobiologist at the University of Arizona known for her research on extraterrestrial life and planetary atmospheres. She gained attention recently for her skeptical commentary regarding a study that suggested potential signs of life in the atmosphere of the exoplanet K2-18b, where scientists claimed to have detected certain sulfur molecules typically produced by microscopic life forms on Earth.
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Tessa Fisher is an astrobiologist at the University of Arizona who commented on the study's findings, suggesting there is almost certainly no life.
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