See Jupiter shining like the “Christmas Star” and catch a glimpse of the ISS — aka “Santa’s Sleigh” — in the early morning ...

Sky watchers are in for a treat on Christmas Eve as the waxing crescent Moon, Jupiter, and Saturn create a stunning celestial ...

The 2025 winter solstice happens on Sunday, Dec. 21, bringing the longest night and marking the start of astronomical winter.

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...

The year’s most memorable moments from astronomy and space exploration include a double-detonating supernova, a private moon ...

The sun was slung so low in the sky that I felt certain it was close to the evening hour of dinner time. Long shadows cast by ...

A 14%-illuminated waxing crescent moon will hang low in the southwest tonight, soon after sunset, still in Capricorn, with ...

The Saturnian system features multiple observational events, including Iapetus's superior conjunction, a transit of Titan, and various close apparent passes among its inner moons (Dione, Rhea, and ...

Sommarøy’s time-free zone was, in a sense, an attempt by residents to reclaim their connection to a more natural measure of time. After all, every year, the island experiences roughly 1,656 hours of ...

Together, variations in the albedo, its distance from the Earth and sun, and its phases seen from Earth can all cause the brightness of Venus to swing from -4.92 to -2.98, according to a 2018 study.

Aviation's climate impact is partly due to contrails—condensation that a plane streaks across the sky when it flies through ...

When the 3 rd -century Christian theologian Origen of Alexandria attempted to account for the unusual movements of the Star ...