Exoplanet K2-18b is garnering a lot of attention. James Webb Space Telescope spectroscopy shows it has carbon and methane in its atmosphere. Those results, along with other observations, suggest the planet could be a long-hypothesized "Hycean World." But new research counters that.
Another explanation for K2-18b? A gas-rich mini-Neptune with no habitable surface
Phys.org - 30 Jan 2024 21:20
Exoplanet K2-18b is garnering a lot of attention. James Webb Space Telescope spectroscopy shows it has carbon and methane in its atmosphere. Those results, along with other observations, suggest the planet could be a long-hypothesized "Hycean World." But new research counters that.
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