Lemmon, which is a rare green comet, can be seen with the naked eye on Oct. 21, according to the Royal Astronomical Society, ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Bay Area before it disappears - and won't be seen again for more than a thousand ...

A rare green Hallowe’en comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

Tonight, the sky will light up with a rare spectacle. Two bright green comets, C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are ...

Residents of Bengaluru captured images of the rare Comet Lemmon lighting up the sky and shared pictures of it on social media ...

Comet Lemmon, a rare astronomical event that won’t happen again for 1,000 years, is set to light up our skies later this week.

Comets Lemmon and SWAN are nearing Earth in a rare double cosmic treat. Where and what time can you see them? What to know.

Orionids meteor shower offers chance to see shooting stars over SC this weekend, with the crescent moon still allowing views ...

Usually, sunlight makes cometary gases glow green from diatomic carbon (C2) or blue from ionized carbon monoxide (CO+). With ...

The comet's green glow is caused by fluorescence of diatomic carbon (C2) when exposed to ultraviolet sunlight, not reflection.

Perihelion is the point on an orbital course that brings a body closest to the sun. C/2025 K1 (ATLAS) is an Oort cloud comet ...