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 ...

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 ...

Successful astronomical observing sessions are significantly enhanced by pre-planning an observing list, ideally sorted geographically (west to east) to optimize viewing flow. Observers are advised to ...

Observing the wonders of the night sky begins with selecting the right telescope. Join us on Nov. 20, 2025, at 9:00 am EST for Astronomy Unlocked: How to Choose Your Best Telescope. This virtual event ...

An iron dagger discovered within Tutankhamun's tomb was identified as originating from an iron meteorite. In 2016, Italian researchers confirmed the dagger's cosmic source by analyzing its elemental ...

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 ...

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 ...

Comet Lemmon reached its perihelion on November 8, subsequently entering a fading phase, although temporary increases in brightness due to outbursts remain a possibility. An observation on November 8 ...

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 ...

Dwarf planet 1 Ceres, an eighth-magnitude object, is observed in close angular proximity to a fainter ninth-magnitude background star, located 6’ southwest of the background star. Ceres is positioned ...

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 13, Titan will undergo an occultation egress from behind Saturn's disk. This phenomenon will begin at 7:26 p.m. EST, occurring in darkness for observers in the eastern U.S. and during ...