The James Webb Space Telescope has made some amazing discoveries since it first launched in 2021: the rings of Nepture, giant distant galaxies, the looming death of a star and a question mark in deep space.
ExpandThis artist’s concept shows what exoplanet K2-18 b could look like based on science data. K2-18 b, an exoplanet 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in the habitable zone and lies 120 light-years from Earth.
A new investigation with NASA’s James Webb Space Telescope into K2-18 b has revealed the presence of carbon-bearing molecules including methane and carbon dioxide. The abundance of methane and carbon dioxide, and shortage of ammonia, support the hypothesis that there may be a water ocean underneath a hydrogen-rich atmosphere in K2-18 b.September 14, 2023 at 11:41 am PDT
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