The JWST's spectrometer readings found that methane and carbon dioxide were abundant, which led to scientists concluding that the 'sub-Neptune' planet was likely covered in a massive ocean hundreds of miles deep and a hydrogen-rich atmosphere.
Cambridge astrophysicist Nikku Madhusudhan highlighted the significance of detecting methane on K2-18b, solving the 'missing methane problem' and indicating the presence of an ocean on the distant planet.
Madhusudhan emphasized the potential revolutionary impact of confirming the presence of DMS on K2-18b, acknowledging that further investigation and analysis are required before any definitive conclusions can be drawn.
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