Venus and Mercury are on the other side of the sun. A partial solar eclipse happens in the northern hemisphere. And some people keep count of how many lunar months have gone by since some moment.

The moon's heading toward the farthest south it will go for the next two decades. Venus and Mercury head to conjunction. And why is there an old tale about being able to stand an egg on its end only on the equinox?

Planets are disappearing from the evening sky, but Venus is a good guide for finding Mercury. There's a total lunar eclipse this week. You can usually still see some lunar features during totality. And Universal Time isn't universally understood.

Saturn's lost in the sun glow as it leaves the evening sky. Mercury and Venus are leaving soon. Last chance to see the moon as far north as it goes. Find out about next week's total lunar eclipse. And learn why we see nebulae.

Sometimes, Saturn appears ringless. We're about to cross the ring plane, from which we see--or don't see--the rings edge-on. Unfortunately, we won't get to see this phenomenon when it happens in a few weeks.

The same side of the moon is always facing us, so it seems like we should see just half of it. But we actually see more, thanks to the tidal lock not being super tight.

Some evening planets are sinking into the sunset, while others still ride high at dusk.

Why do the planets seem to go back and forth in our sky when they're all going the same way around the sun?

Mercury's about to emerge into the evening sky.

No pre-dawn planet watching for now. So get to know the current morning stars. Is Cygnus flying in the right place?

Even though we see through air, it's not as transparent as we think. It gets in the way.

Venus, Saturn, and Neptune are close on the celestial dome. They're fairly easy to see for now.

Mars moves deeper into Gemini. Jupiter resumes direct motion this week.

Mars pushes into Gemini. Jupiter prepares to turn around. Venus enters Pisces. And with two dogs crossing the sky, why don't northern hemisphere residents call these the dog nights of winter?

Venus soars above Saturn. Jupiter and the Hyades are high at dusk. Mars passes Pollux. And how can scientists know when the Blaze Star in Corona Borealis will flare up?