Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

Starlink satellites orbit approximately 342 miles (550 kilometers) above Earth and put on a spectacular show for observers as ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

And now let’s find the sky’s largest constellation, Hydra the Sea Serpent. It’s not very wide, but it’s incredibly long, as befits a sea serpent. To find this monster, first face west and ...