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

When a volcano erupts, it can spew ash high into the atmosphere—inserting aerosols right where clouds typically form. How ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

Previous models have found clouds fueled by seabird guano in the Arctic do cool the ground, but the study authors say ...

When the wind blew from the direction of the colony, ammonia levels spiked, sometimes reaching 1,000 times above normal ...

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

Penguin poop provides ammonia for cloud formation in coastal Antarctica, potentially helping to mitigate the impacts of climate change in the region.

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

While a funnel cloud may look like a tornado and form the same way, there's a very distinct difference between the two.

Sales were strong across Microsoft's Cloud, Windows and Office segments. Revenue for the company’s Azure cloud-computing service leaped 35% from a year earlier in the quarter.

Thunderstorms form due to rapidly rising air ... These repetitive pouches are your mammatus clouds. Check out a couple pictures that were sent to us Sunday evening. The one below, from Kevin ...