Press Release: Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b (STSI 2023)

Data hints at exoplanet possessing possible liquid ocean surface
Carbon-bearing molecules have been discovered in the atmosphere of the habitable zone exoplanet K2-18 b by an international team of astronomers using data from the NASA’s James Webb Space Telescope. These results are consistent with an exoplanet that may contain ocean-covered surface underneath a hydrogen-rich atmosphere. This discovery provides a fascinating glimpse into a planet unlike anything else in our Solar System, and raises interesting prospects about potentially habitable worlds elsewhere in the Universe.

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Exoplanets: The Next Frontier in Space Exploration

Exoplanets, or extrasolar planets, are planets that orbit stars outside of our solar system. These celestial objects were, until recently, the stuff of science fiction. The idea that other star systems could host planets similar to ours—or dramatically different—stirred both scientific and popular imagination. However, it wasn’t until the 20th century that scientists confirmed their existence, forever changing our understanding of the universe.

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