In 2026, many people will hear the same strange phrase repeated again and again. The Sun will briefly disappear. It sounds ...

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 ...

Today marks the shortest day and longest night of the year as the sun reaches its lowest point in the Northern Hemisphere sky ...

Earth's atmosphere scatters sunlight, making the sky appear blue due to shorter blue light waves. Longer waves, like red and ...

Jupiter shines brilliantly in the eastern sky this December as it nears opposition early in 2026, outshining nearby stars 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 ...

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 ...

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 ...