There’s something truly enchanting about catching sight of iridescent clouds, shimmering like a spilled box of pearls against ...

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

A note overlaid on the video says, "Never in my life have I seen a cloud so big it blocks the sunrise all the way across the sky." The clip has amassed 4 million views since it was first shared on ...

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.

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.

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.