Noctilucent cloud season is upon us. If you’re in the Northern Hemisphere this summer, keep your head to the skies at sunset ...

The best time to see noctilucent clouds is on clear nights between late May and mid-August, about 90 to 120 minutes after ...

Parts of the United States have gotten an early taste of summer weather, as temperatures and humidity are on the rise. Summer ...

Weather officials say different types of clouds can tell you what kind of weather to expect. Here's a look at the different types.

The ammonia from Adélie penguin guano reacts with sulfur-containing gases in the atmosphere to aid in forming clouds, which ...

The fleeting glow of noctilucent clouds is once again making its appearance in Earth’s upper atmosphere, signaling the start ...

Penguin droppings release ammonia that forms clouds, affecting Antarctica's climate and potentially slowing warming.

Penguin poop may be playing a key role in keeping climate change in check over Antarctica, new research published May 22 ...

Scientists say they’ve seen ammonia emitted from penguin poop result in the creation of fog. The clouds created may be ...

Volcanic ash from eruptions can reshape cirrus clouds, forming giant ice crystals and altering how Earth traps heat in the ...

In Antarctica, penguin droppings are emerging as unexpected climate allies. Research indicates that ammonia from penguin ...

New research shows that penguin guano in Antarctica is an important source of ammonia aerosol particles that help drive the ...