Smelly Sign of Life on K2-18b?
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Several years ago, astronomers thought exoplanet K2-18b would be a good candidate for life because of its atmosphere. Then the negative aspects were considered. One of these is that it has an orbit of thirty-three days around a red dwarf star. That makes for extreme temperature ranges. The James Webb Space Telescope was used to detect dimethyl sulfide. This is thought to only come from life, so it is labeled as a biosignature . It is an odoriferous gas produced on Earth by algae and by humans to some extent. Too much is dangerous to us. Artist concept, exoplanet K2-18 b, NASA, CSA, ESA, et al. (usage does not imply endorsement of site contents) A problem for secularists is that dimethyl sulfide is not only produced by living things. That means it's not necessarily a biosignature. There are numerous assumptions made about life on K2-18b, including abiogenesis and evolution. (Some reports that will probably be forgotten soon after their self-humiliation, lying that ...