October’s bright Full Moon offers an excellent observing target, allowing you to trace the rays thrown out by ancient impacts ...

The foundation for what we know about black holes came during the Great War. Imagine the scene: December 1915. Europe and the world are struggling under the dark cloud of World War I. Somewhere on the ...

Dione and its shadow cross Saturn’s disk this evening, while several more of the ringed planet’s moons stand nearby.

This small martian satellite, the mission target for MMX, is destined to be shredded, changing the Red Planet forever.

Saturn’s small moon Tethys makes another transit across the disk along with its shadow; several other moons are observable as ...

Meteors streak past the stars as the First Quarter Moon shines and Iapetus reaches superior conjunction in the sky this week.

Monday, October 26 October’s Full Moon occurs at 12:12 A.M. EDT, shining brightly in both the morning and evening sky. The October Full Moon is also called the Hunter’s Moon, which follows the Full ...

Two jovian moons cross each other’s paths from our point of view, appearing to merge in the telescope eyepiece.

The Wild Duck Cluster is flying through the nighttime sky, a great object to check out during lengthening autumn evenings.

The Orionid meteor shower peaks this morning — the perfect time to watch for shooting stars, as Earth turns into the ...

The Southern Fish is home to the bright luminary Fomalhaut, a lovely young star that shines brightly in the evening sky.

Learn the basics of the celestial coordinate system, like right ascension and declination, for accurate stargazing.