These strange noctilucent clouds thrill skywatchers throughout the summer months.

A Met Office video explains seven rare cloud types - including noctilucent clouds as they’re sighted in the UK.

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 ...

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

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere — and all you need are your naked eyes.

Astronaut Matthew Dominick photographs high-flying noctilucent clouds at the edge of space from the International Space Station.

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

Noctilucent cloud season is upon us! Here's what you need to know about when to catch the spectral phenomenon as we move into the prime viewing season of the summer months.

Noctilucent clouds, wispy clouds in Earth's upper atmosphere illuminated by the sunlight just after sunset, are pictured from the International Space Station as it orbited 269 miles above the ...

Just after 5 a.m., SpaceX’s Falcon 9 rocket launched 23 Starlink satellites into the sky from the Space Launch Complex 40 at Cape Canaveral Space Force Station.

A fantastic photograph shows noctilucent clouds over Edinburgh.Sachiko Hamada caught the stunning space phenomenon at 2:10am ...

A Met Office video explains seven rare cloud types - including noctilucent clouds as they’re sighted in the UK.