In April, astronomers said they had detected a possible signature of life on the exoplanet K2-18b. Now, three independent analyses discount the evidence. Source link : https://www.nytimes.com/2025/05/23/science/astronomy-extraterrestrial-life-k218b.html Author : Carl Zimmer Publish date : 2025-05-23 07:00:00 Copyright for syndicated content belongs to the linked Source.