The Geminid meteor shower, characterized by bright, slow-moving meteors, is distinct as its parent body is identified as the asteroid 3200 Phaethon, unlike most meteor showers which originate from ...

On December 9th, Neptune will attain its stationary point at 7 P.M. EST, marking the conclusion of its retrograde motion. The ice giant will be situated near Saturn and the Circlet of Pisces in the ...

At least two ingredients are needed to make jets — rotation and magnetic fields — and these produce the ubiquitous laserlike jets we see.

Mercury's visibility is noted to be improving, appearing 7° high an hour before sunrise with a magnitude of –0.3 and a 54% illuminated disk. The planet is approaching its greatest western elongation, ...

Stephan's Quintet, discovered in 1877 by French astronomer Edouard Stephan in the constellation Pegasus, exemplifies the enhanced detail observable through larger astronomical apertures. The group ...

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.

Primordial nucleosynthesis during the early universe generated hydrogen, helium, and minor lithium-7 before the cosmos cooled, halting further fusion. Stellar interiors synthesize elements up to iron ...

On October 25, Saturn's moon Iapetus reaches inferior conjunction, positioned 1.3′ north of Saturn and shining at approximately 11th magnitude, making it easier to observe near its parent planet.

As of March 2025, Saturn possesses 274 confirmed moons, the highest number among planets in the solar system. Early discoveries, beginning with Titan in 1655, were limited to five moons by the late ...

A close conjunction of the waning crescent Moon (approximately 26% illuminated) and Jupiter occurred around 7 A.M. EDT, observable in the eastern sky before sunrise, with the Moon positioned between ...