A moon dog occurs at night in the winter when the moon is full, or near full, casting light through high clouds.

ROCHESTER, N.Y. — We are looking at another aspect of optics in the atmosphere and the “cool” stuff you can sometimes see in the winter sky ... appears to show the sun (check the video ...

the clouds are high enough in the atmosphere that the sun still shines on them, making them seem to almost glow in the sky,” wrote Alex Innanen, a York University atmospheric scientist ...

The beautiful planetary parade continues through the end of the month, with special guest Mercury joining the pack soon.