Webb Determines Atmospheric Makeup of Sub-Neptune TOI-421b

Astronomers using Webb have captured the transmission spectrum of the sub-Neptune TOI-421b and uncovered the chemical fingerprints of its atmosphere. The post Webb Determines Atmospheric Makeup of Sub-Neptune TOI-421b appeared first on Sci.News: Breaking Science News.

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May 6, 2025 - 09:15

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Webb Determines Atmospheric Makeup of Sub-Neptune TOI-421b

An artist’s impression of the sub-Neptune exoplanet TOI-421b. Image credit: NASA / ESA / CSA / Dani Player, STScI.

Astronomers using Webb have captured the transmission spectrum of the sub-Neptune TOI-421b and uncovered the chemical fingerprints of its atmosphere.

The post Webb Determines Atmospheric Makeup of Sub-Neptune TOI-421b appeared first on Sci.News: Breaking Science News.

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