After the Crab Nebula, M1, this giant star cluster is the second entry in 18th century astronomer Charles Messier's famous list of things that are not comets.

Why would a bright full Moon suddenly become dark? Because it entered the shadow of the Earth.

Majestic on a truly cosmic scale, M100 is appropriately known as a grand design spiral galaxy.

"Oh my God! Look at that picture over there! Here's the Earth coming up. Wow is that pretty!"

About 12 seconds into this video, something unusual happens.

They say Orion always comes up sideways, and he does seem to on this cold December night. The bright stars of the familiar northern winter constellation lie just above the snowy tree tops surrounding a cozy cottage near the town of Ustupky in the Cze

They say Orion always comes up sideways, and he does seem to on this cold December night. The bright stars of the familiar northern winter constellation lie just above the snowy tree tops surrounding a cozy cottage near the town of Ustupky in the Cze

They say Orion always comes up sideways, and he does seem to on this cold December night. The bright stars of the familiar northern winter constellation lie just above the snowy tree tops surrounding a cozy cottage near the town of Ustupky in the Cze

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

This festively colored skyscape was captured in the early morning hours of December 17, following Comet Wirtanen's closest approach to planet Earth. The comet was just visible to the eye.