Aurora chaser and photographer Harlan Thomas ( @TheAuroraGuy) was about 18.5 miles (30 kilometers) north of Calgary along a rural stretch he calls "The Twisted Pond Road" when the surprise display of ...

Rare clouds that form in summer high up in the Earth's atmosphere have been seen from parts of Scotland. BBC Weather Watchers ...

Noctilucent clouds, often called “night-shining clouds,” are the highest clouds in Earth’s atmosphere. They form in the mesosphere, about 76 to 85 kilometers (47 to 53 miles) above the ...

Parts of Alberta witnessed a spectacle early Friday morning as rare noctilucent clouds, also known as night-shining clouds, ...

Early Tuesday morning, a delicate, wispy cloud type rarely seen formed over western Montana, lighting up the pre-dawn sky.

A rare cloud formation was seen across much of Canada and parts of Europe recently, but it’s unknown if it will happen again ...

Spot overlapping meteor showers this month, along with the Moon sharing the sky with some of the brightest planets.

On either night, look about a third of the way up in the western sky between 10 and 11 p.m. They'll be closely paired, with red Mars just above the star. Read more from Astro Bob ...

Video captured a dramatic cloud formation that appeared over Maryland on Wednesday night as severe thunderstorms tore through the region, triggering tornado and flash flood warnings.

In its first year alone, it will double the amount of data collected so far by every other instrument in the history of ...