Today marks the start of Northern Hemisphere summer, and also offers a chance to view night-glowing clouds if you’re lucky.

Have you ever gazed up at the sky and wondered why clouds look so incredibly different from one another? One moment, you spot ...

Aurora chaser and photographer Harlan Thomas ( @TheAuroraGuy) was about 18.5 miles (30 kilometers) north of Calgary along a ...

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.

This month's night sky is filled with close-range meteors, swirling nebulas, and prime stargazing conditions. Here’s when you ...

There are 10 main types of clouds. There's the Cumulus cloud, otherwise know as the Simpsons' cloud. "The cartoon cloud that forms on a sunny day. The fair weather cloud. It's like the generic one, ...

The origins of noctilucent clouds are still mysterious. Unlike other spectacular night sky displays like aurora borealis, which have been observed for millenia, there are no reported sightings of ...

Noctilucent clouds over the ... surface and about 11 miles above the ground, these appear in the mesosphere, up to 50 miles high. They become visible right after sunset or right before sunrise ...

HEAT ADVISORIES have been issued for all of Wyoming and McDowell counties along with western Fayette, western Raleigh, and ...

Cumulus clouds, with their distinct ... somewhere with a clear view of the sky and a flat horizon—like an open field—about an hour or two after sunset or just before sunrise.