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

  • Victoria Corless |
  • Technology |
  • Space.com |
  • 05-09-2025 |
  • 37

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 …

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