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Space
Space
Science
Victoria Corless

James Webb Space Telescope finds water in the air of exotic 'sub-Neptune' exoplanet

This artist’s concept shows what the hot sub-Neptune exoplanet TOI-421 b could look like.

NASA's James Webb Space Telescope (JWST) has found water swirling in the air of a distant alien planet, a new study reports.

That exotic world is TOI-421 b, a boiling-hot "sub-Neptune" orbiting a star about 244 light-years from Earth whose atmosphere JWST recently probed in detail.

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