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 ...

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) ...

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 ...

November presents a dynamic celestial calendar, with Mercury transitioning from the evening to morning sky and Venus's visibility diminishing throughout the month. The gas giants Jupiter, Saturn, ...

Comet C/2025 A6 (Lemmon) is currently visible in the predawn eastern sky, initially positioned within the constellation Ursa Major. Its perigee, or closest approach to Earth, is scheduled for October ...

The Biosphere 2 facility, specifically its Landscape Evolution Observatory (LEO), serves as a research platform to investigate how life transforms landscapes, ranging from local environments to ...

October features significant planetary phenomena, including two transits of Titan across Saturn and recurring tandem transits of Io and Europa across Jupiter's disk, often with their shadows. The ...

The Moon reaches apogee, the farthest point from Earth in its orbit, at 5:46 A.M. EDT. At that time, our satellite will stand 251,996 miles (405,548 km) away. With the Moon sinking low in the hours ...