Perhaps the best known of all comets is Halley, correctly pronounced so that it rhymes with rally, not daily. It is named after the 17th-18th century astronomer Edmond Halley. This ...

"The extent of the tail is gargantuan, stretching up to 9 million kilometers [5.6 million miles] long," said MIT astronomer Marc Hon.

This week is International Dark Sky Week. Lights that are aimed upwards or not properly capped illuminate the atmosphere and ...

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

Discovered in March of this year, Comet Swan (C/2025 F2) is visible low in the pre-dawn northeast sky, before moving to the ...

The moon count in our solar system just went up by three. Astronomers have found two previously unknown moons circling Neptune and one around Uranus. The distant tiny moons were ...

A new comet is visible in sky, C/2025 F2 (SWAN), and can be discovered low in the east just before the dawn twilight. It is situated just within the well-known star pattern, or asterism ...

A new comet, nicknamed SWAN25F, was given its official designation as C/2025 F2. The comet was co-discovered by Vladimir Bezugly and Michael Mattiazzo. The comet is best viewed looking toward the ...

A recently discovered comet is currently gracing our morning skies, with its signature green glow and long tail trailing behind. Comet SWAN25F is speeding toward the Sun for a dangerously close ...

A freshly-identified comet hurling towards the Sun is now bright enough to see from Earth. Dubbed C/2025 F2 (SWAN), the dust-laden streak is nicknamed for the SWAN instrument aboard the European ...

SWAN25F is a newly discovered comet that is streaking through the sky this month. It was only just identified in March of this year by amateurs, but it’s already getting brighter and putting on ...