Looking for a sky event this week? Check out our full Sky This Week column. January 21: Ganymede and its shadow transit ...

Sky This Week is brought to you in part by Celestron. Friday, January 9Mars is in conjunction with the Sun at 7 A.M. EST, ...

The night sky has long sparked wonder and curiosity. Early civilizations studied the stars and tracked celestial events, predicted eclipses and used their observations to construct calendars, develop ...

Looking for a sky event this week? Check out our full Sky This Week column. January 19: Where Messier started: M1 Comet ...

Sky This Week is brought to you in part by Celestron. Friday, January 9Cygnus may be sinking toward the horizon a few hours ...

Many astronomical events, such as meteor showers, run by calendrical timings as well. But our moon and the other planets move ...

No matter your observing experience or equipment, January 2026 provides many impressive astronomy events to kick off the new ...

When an object is in opposition, it is at its highest point in the sky during the darkest time of the day. Thus, opposition ...

Donald G. York, an astronomer with the University of Chicago who helped revolutionize the field as a co-founder of the Sloan Digital Sky Survey and made pioneering contributions to the study of the ...