NASA’s James Webb Space Telescope (JWST) could soon detect
signs of alien life on Hycean planets, a class of exoplanets with deep oceans
and thick hydrogen atmospheres. Unlike Earth-like planets, these worlds offer
clearer biosignature signals, making them ideal targets for JWST. Researchers
suggest methyl halides, gases produced by microbial life on Earth, could serve
as key indicators of extraterrestrial life. Detecting these gases could take as
little as 13 hours, offering a cost-effective method compared to searching for
oxygen or methane. This breakthrough could revolutionize the search for life
beyond Earth, focusing on Hycean planets orbiting red dwarf stars.
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