Toggle light / dark theme

Webb telescope detects water vapor on a planet outside the solar system smaller than Neptune

Many of these smaller worlds are shrouded in haze, but this one seems to have clear skies and to be unusually hot.

TOI-421 B sits several times closer to its star than earth does to the sun. The planet’s atmosphere reaches around 1,340°F, which is intense even by exoplanet standards.

Astronomers using the Webb Telescope used a method known as transmission spectroscopy to spot water in the planet’s upper layers.

Leave a Comment

Lifeboat Foundation respects your privacy! Your email address will not be published.