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

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

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...

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

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 ...

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

Webb is helping scientists understand these gassy exoplanets 'in a way that was not possible prior to the telescope’s launch, ...

Sub-Neptunes, planets with diameters bigger than Earth's but smaller than Neptune's, are the most prevalent form of exoplanet ...

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

Unlike the James Webb Space Telescope's views of other sub-Neptune exoplanets' atmospheres, its look at TOI-421 b was clear. Credit: NASA / ESA / CSA / Dani Player illustration A sweltering planet ...