A pair of once-in-a-lifetime comets are rocketing through our skies right now, and it's a rare treat because they won't be ...

Comet Lemmon is moving quickly west of the Big Dipper, near bright Arcturus, while Comet SWAN lies beneath the three stars ...

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

The comets are visible in the northwest (Lemmon) and southwest (SWAN) about 90 minutes after sunset. Lemmon is moving quickly ...

Comet C/2025 A6 (Lemmon) will pass through the neck of the great celestial serpent represented by the constellation Serpens ...

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

Skywatchers are anticipating prime viewing conditions for an annual showing of shooting stars and two comet flybys ...

A rare opportunity to see not one but two comets awaits skygazers this October. We show where and how to view them.

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

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.

The month of October is hosting multiple celestial events and one of them is a double-comet spectacle. Here's how to see the ...