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

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

NASA's James Webb Space Telescope has found water vapor swirling in the air of a distant, boiling-hot alien planet, a new ...

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

New images from the James Webb Space Telescope reveal the dazzling auroras of Jupiter, shining hundreds of times brighter ...

NASA's Perseverance rover recently captured a photo of green auroras shining in the Martian sky for the first time. The alien ...

The big surprise was just how lightweight the planet's atmosphere appeared. It wears a jacket of hydrogen and helium, like the gas its star is made of. Previous sub-Neptune studies revealed worlds ...

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

Why doesn’t our solar system have sub-Neptune exoplanets and what can they teach us about planetary formation and evolution?

In a groundbreaking step for exoplanet science, NASA's James Webb Space Telescope (JWST) has given us an unprecedented look at the atmosphere of TOI-421 b, a sub-Neptune exoplanet about 245 light ...