The planet watching continues to migrate to the morning.

Astronomers realized in 1844 that Sirius has a companion star. But it took 18 years before anyone built a telescope that could reveal it.

Sky watchers of long ago described Sirius as red. Why would they say that when the star is bluish-white?

Venus moves into the morning with Mars. Mercury's leaving the evening with Saturn in its wake. Jupiter's not ready to go just yet.

Many of the legends of Gemini say one twin is immortal but the other isn't. Learn about some stars in the constellation.

Former U.S. President Jimmy Carter claims to have seen a strange light in the sky one night in 1969. He doesn't think it was a spacecraft. Neither do most of the UFO researchers who've studied the case, although he disagrees with their assessment of what it was.

Venus begins its ingress into the morning sky. Saturn's on its way out of the evening.

A colorfully named asteroid, Iris, is at opposition this week.

Orion is the most recognizable constellation and now's the best time of year to get to know him.

A river is an important part of many ancient Greek legends whose characters are represented in our constellation maps. So, of course, it makes sense to have a river up there too.

The Quadrantid meteor shower peaks this week.

Earth is closest to the sun.

The moon passes in front of planets somewhat often. Planets passing in front of other planets? Every once in a few lifetimes.

Most of the naked eye planets are congregating in the evening sky this week. December evenings are also a good time to see the Andromeda Galaxy. A century ago, astronomers weren't sure what it was. When one astronomer noticed something the rest missed, he blew their minds.

Mercury is an evening object, but you'll have trouble finding it.

Comet Leonard enters Microscopium as its orbital position takes it closer to the sun.

A popular question this time of year is what was the Star of Bethlehem. Most of the possible answers don't actually involve stars. When they do, they involve planets too.

Fast-moving Comet Leonard becomes an evening object this week.

Venus slows its march eastward to turn around.

The Geminid meteor shower peaks.

If you ever discover an asteroid, you'll get to name it after yourself, someone else, a place, or a thing. But it's not a case of anything goes. And it's not a fast process.

Sooner is better than later for seeing this year's Geminid meteors.

Consider the mystery about where the Geminids come from. They're not associated with a comet.

Be considerate when using outdoor lighting. It's not just astronomy that depends on a proper light.

Three planets are in our evening sky. Mars is emerging into the morning dome. Try to see Comet Leonard. And Antarctica gets a solar eclipse.

It's been 400 years since the harvest celebration that inspired the American Thanksgiving holiday. What did the pilgrims and the Wampanoag see in the sky in 1621?

Antarctica and places nearby get a solar eclipse.