Welcome to the December Solstice, the first day of winter in planet Earth's northern hemisphere and summer in the south.

What's happening in the sky? Unusual lights appeared last week to hover above Whitefish Bay on the eastern edge of Lake Superior between the USA and Canada.

You've probably seen a circle around the Sun before. More common than rainbows, ice halos, like a 22 degree circular halo for example, can be easy to spot, especially if you can shade your eyes from direct sunlight.

It's northern noctilucent cloud season -- perhaps a time to celebrate!

A small crystal ball seems to hold a whole galaxy in this creative snapshot.

Have you ever seen a sun pillar? When the air is cold and the Sun is rising or setting, falling ice crystals can reflect sunlight and create an unusual column of light.

Posing near the western horizon, a brilliant evening star and slender young crescent shared reflections in a calm sea last Thursday after sunset.

Have you ever seen a halo around the Moon?