A pair of once-in-a-lifetime comets will rocket through our skies this October, and it's a rare treat because they won't be ...

Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 20 beginning at 1:30 p.m.

Comet Lemmon (C/2025 A6) makes its closest approach to Earth on Oct. 21, about 24 hours after the fainter Comet SWAN (C/2025 ...

Discovered on January 3, 2025, by astronomer David Carson Fuls, it looks likely that what was a distant, very faint object at the start of the ...

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand ...

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet ...

The comet is fast approaching its closest encounter with Earth on Tuesday, March 21, a harmless 28.6 million miles.

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

One of the more reliable annual meteor showers, the Orionids, peaks during a new moon, making 2025 an excellent year to watch ...

A comet discovered earlier this year, now just bright enough to be visible to the naked eye, is poised to be among the top ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...