Celestron introduces the Moon Mission 100mm Tabletop Dobsonian, a 4-inch f/4 reflector telescope that includes two eyepieces, a finder scope, and a Moon filter, weighing 5.3 pounds with an optical ...

On November 25, Jupiter will be observable approximately 10° above the eastern horizon by 9 P.M. local time, positioned 7° south of Pollux and visible near Gemini's twin stars, Castor and Pollux.

Claude-Louis Mathieu, born in Macon, France, in 1783, demonstrated an early aptitude for mathematics, overcoming familial and financial obstacles to graduate from the Ecole Polytechnique in 1805. His ...

The article details a celestial conjunction on November 24, 2025, where Mercury is visible 1.4° to Venus' upper left before sunrise, with Mercury requiring optical aid for clear identification. An ...

Dave Eicher, Editor Emeritus of *Astronomy* magazine, encourages observers to locate Saturn, the solar system's sixth planet, in the evening sky. During this observational period, Saturn's typically ...

King Alfonso X "the Wise" (b. 1221) was a noted scholar who pioneered the translation of Arabic and Andalusian astronomical works into vernacular Castilian. His multicultural court was active in ...

On November 22, Titan will transit Saturn. The Silver Sliver Galaxy (NGC 891), an edge-on spiral measuring 13’ by 3’ and glowing at magnitude 9.9, is observable 3.5° east of Almach (Gamma Andromedae) ...

A new study redefines the Pleiades (M45) as a "Greater Pleiades Complex," an extensive stellar family comprising 3,091 member stars and spanning over 1,900 light-years, making it 20 times larger than ...

Early on November 12, the Moon, described as a 38-percent-lit crescent, will be observable rising between Regulus and Denebola within the constellation Leo. The Moon's western limb will display ...

Launched on May 30, 1971, Mariner 9 achieved orbit around Mars on November 13, 1971, becoming the first spacecraft to orbit another planet. Following the failure of its counterpart, Mariner 8, Mariner ...

The National Oceanic and Atmospheric Administration (NOAA) has issued a sustained alert for a G3 (strong) to G4 (severe) class geomagnetic storm, effective until November 14, with current observations ...

On November 9, at 3 A.M. EST, the Moon will pass 4° due north of Jupiter, with both celestial bodies observable in Gemini during early morning hours. Jupiter, shining at magnitude –2.4, will be easily ...