"I had been waiting my entire career for Webb so that we could meaningfully characterize the atmospheres of these smaller ...

Astronomers didn’t even know sub-Neptunes existed until NASA’s Kepler mission uncovered them over the past decade. Although a ...

Using the James Webb Space Telescope, a collaboration of NASA and its European and Canadian counterparts, a team of ...

Webb Space Telescope reveals a surprisingly clear atmosphere on planet TOI-421 b, helping scientists understand the evolution ...

New views of TOI-421 b by JWST gives insight into how the most common type of planet in the galaxy might form.

The idea that our Solar System is representative of other solar systems hasn't survived the age of exoplanet discovery.

Planet TOI-421b lacks the haze of other exoplanets, which means we're able to get a surprisingly clear understanding of it.

These types of exoplanets are some of the most common in our galaxy - but they've remained mysterious until now.

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 ...

Astronomers using NASA’s James Webb Space Telescope have taken a major step toward understanding a puzzling type of planet ...

Credit: NASA / ESA / CSA / Dani Player illustration A sweltering planet circling a star much ... the clearest atmospheric reading yet for a hot sub-Neptune exoplanet. Credit: NASA GSFC / CIL ...