A simple guide to the Dec. 25, 2025 night sky, with viewing tips for the moon, bright planets, and familiar winter stars ...

The hours following sunset on Dec. 25 offer a wealth of naked-eye astronomy targets that can put even the most glitzy ...

Follow Orion’s three belt stars southeast (down and to the left) to Sirius in Canis Major, the brightest star in the sky.

Sky This Week is brought to you in part by Celestron. Friday, January 2The Moon officially reaches the Full phase early ...

Delta Cephei, the archetype Cepheid variable star, is located in the constellation Cepheus, a circumpolar constellation visible in the northern sky. Delta Cephei's position can be determined relative ...

On Saturday night, Jan. 24, the curved terminator on the moon will fall just to the upper left (or lunar west) of a large, ...

The summer solstice occurs at this evening at 10:42 P.M. EDT. For those in the Northern Hemisphere, this marks the official beginning of the summer season. (For those south of the equator, of course, ...

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

On Christmas night, Jupiter will be one of the brightest objects in the sky — and a  stand-in for the mythical “Christmas ...

The writer Tristan Gooley describes how a pair of familiar constellations can help a person navigate in darkness when other methods fail. The writer Tristan Gooley describes how a pair of familiar ...