Scientists using JWST have uncovered striking cloud formations and extreme heat contrasts on LTT 9779 b, a rare ultra-hot ...

Neptune is an ice giant, composed primarily of hydrogen, helium, and methane, with a hot, dense fluid of icy materials above a small rocky core. Neptune has 14 known moons and at least five main rings ...

James Webb found LTT 9779 b, a Neptune-like exoplanet with 2,000°C heat, extreme winds, and evaporating clouds—challenging ...

LTT 9779 b, an ultra-hot Neptune, is defying expectations. With temperatures soaring to nearly 2,000°C and a tidally locked ...

to explore the exotic atmosphere of LTT 9779 b, a rare "ultra-hot Neptune." The results are published on 25 February in Nature Astronomy. The study offers new insights into the extreme weather ...

Illustration of LTT 9779 b, the only known ultra-hot Neptune. This planet orbits so close to its star that its atmosphere is scorching hot, glowing from its own heat while also reflecting starlight.

Astrophysicists have once again enriched our knowledge of the cosmos with a new discovery: two small planets orbiting ...

Feb. 2, 2024 — Astronomers have shown new atmospheric detail in a set of 15 exoplanets similar to Neptune. While none could support humanity, a better understanding of their behavior might help ...