Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The ice giant’s ...

Weather forecast for Neptune: After sunny weather for the past few Earth years, we’ll see increasingly more clouds over the next few years. In 1989, NASA’s Voyager 2 spacecraft provided the first ...

Neptune’s mid-latitude clouds began fading in 2019 and have not recovered, according to nearly three decades of observations from the Hubble Space Telescope and ground-based observatories. By 2020, ...

In an ideal world, technology would maximize individual benefits while also protecting privacy. But in practice, the pivot to digital-first healthcare has sometimes left personal information ...

(CNN) — Astronomers have been puzzling over a mystery on Neptune, and now they think they have unlocked its secret. The ice giant’s ghostly, cirrus-like clouds largely disappeared four years ago.

Astronomers have uncovered a link between Neptune's shifting cloud abundance and the 11-year solar cycle, in which the waxing and waning of the Sun's entangled magnetic fields drives solar activity.