Rare noctilucent clouds are showing up in places they never used to, and scientists are trying to find out why.

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

Weather officials say different types of clouds can tell you what kind of weather to expect. Here's a look at the different ...

Space enthusiasts and families across the U.K. will have the chance to contribute directly to climate science through an ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator ...

This process creates the classic shelf cloud—broad, arching, and often layered like a stack of waves in the sky. One of the reasons shelf clouds are so visually stunning is because of wind shear ...

There's a good chance to catch aurora borealis in Maine this weekend—if the clouds cooperate. PORTLAND, Maine — We've been ...

There have been some wacky weather swings in the D.C. region these past few weeks and the clouds will dominate until Sunday, which will likely prevent seeing the night sky and moon until then.