The science of clouds covers a lot of ground. Her research shines light into topics ranging from the rainfall ... cloud particles mimics the behavior of cloud particles in massive sky-sweeping clouds, ...

From UFO-like rings and whirlpools of light to rainbow clouds and ... into a bright blue blob with a fuzzy halo. This ethereal whirlpool of blue light appeared in the night sky above Alaska ...

That's not just your imagination — the sky ... blue light towards your eyes while the indirect sunlight decreases the incoming levels of red and green." Less humidity means less haze and clouds.

Bright blue-white noctilucent clouds danced over the town of Nykøbing Mors in Denmark just before dawn, just when this spectacular photo was taken. Night sky photographer Ruslan Merzlyakov ...