On Thursday (Aug. 17), astronomers announced quite an unexpected update about one of our solar system's ice giants, Neptune: It would appear that the azure world's clouds have all but disappeared.

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. Today, just ...

CNN — (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 ...

Neptune, the distant ice giant, has thrown astronomers for a loop as its once-constant clouds have mysteriously disappeared, revealing a previously unseen side of this mysterious planet. The latest ...

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.

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. Today, just ...

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 ...

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As distant as it is, orbiting nearly 3 million miles from the sun, we know a surprising amount about the atmosphere and weather conditions on Neptune. Dramatic storms have been observed there ...