Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.

A planetary alignment happens when planets “line up” on the same side of the sun. The phenomenon is visible this month ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

The winning image, shot with a fish-eye lens from a a rocky shelf on the Lake Michigan shore, topped a record 770-plus entries in the annual contest.