James Webb Space Telescope Discovers Water Vapor in Distant Planet’s Atmosphere Written 8 May 2025
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Three-quarter view of the top of the James Webb Space Telescope. | Credit: NASA; Wikipedia; Public Domain
SPACE reports, “NASA’s James Webb Space Telescope has found water vapor swirling in the air of a distant, boiling-hot 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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