Ice crystal halo seen from Canada’s Northwest Territories

The main ring around the sun is called a 22-degree halo. The bright points of light on either side of the sun are called sundogs.

Crepuscular rays over the Gulf of Mexico on February 5

Our friend on Facebook, Rick Trommater in St. Peterburg, Florida, captured this beautiful photo of crepuscular rays at sunset on the evening of February 5, 2013.

Comet Lemmon brighter than expected

This comet is visible with binoculars or telescopes now from Earth's Southern Hemisphere. It's still getting brighter.

Winter sunset at Lulea River in northern Sweden

Birgit Boden captured this image at sunset - around 3 p.m. - on February 3, 2013.

Petrified Forest National Wilderness Area in eastern Arizona

Today's image shows Petrified Forest National Wilderness Area. It's desert today, but, millions of years ago, it was a floodplain populated by stately trees.

The Milky Way stretching over Oregon’s Crater Lake

Today's image of the Milky Way stretching over Crater Lake comes from Ben Coffman.

A waning moon and its halo as seen through a willow tree

Today's image of a waning moon and its halo as seen through the branches of a willow tree comes from EarthSky Facebook friend Michael Flood.

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