There’s something truly enchanting about catching sight of iridescent clouds, shimmering like a spilled box of pearls against the dying light. These rare, pastel-hued displays ... Read more The post ...

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.

Clouds sweep through a colourful sunset sky over West Vancouver on July 11, as seen in this timelapse by @KRose5996.

The best time to see noctilucent clouds is on clear nights between late May and mid-August, about 90 to 120 minutes after sunset or before sunrise. Sightings are most common during June and July.

Scattered thunderstorms are moving out of Mid-Missouri this evening. Once we get beyond sunset, we will stay mainly dry ...

NASA Wants Your Help to Study These Rare, High-Altitude Clouds That Appear to Glow at Sunrise and Sunset Noctilucent clouds usually form close to the poles, but in recent decades, they’re being ...

Sunset over Lake Superior viewed from the Little Girls Point County Park in Michigan's Upper Peninsula. The sun is a star just like the ones we see in the night sky.