Hubble finds signature of water vapor in exoplanet GJ 9827d's atmosphere

The water vapor was detected after three years of observing GJ 9827d and could be an example of planets with water-rich atmospheres elsewhere.

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Thomas Greene ,Laura Kreidberg ,Ames Research Center ,Max Planck Institute For Astronomy ,Leah Hustak ,Ralf Crawford ,Hubble Space Telescope ,Astrophysical Journal ,Max Planck Institute ,James Webb Space Telescope ,