Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to ...

Then there was the September discovery of C/2025 R2 (SWAN), a comet so bright that even when it was near the moon on ...

This coming autumn brings a thrilling lineup of comets visible from both hemispheres, framed as a “parade of comets” for skywatchers to enjoy—made all the more compelling through coordinated ...

The article advocates for imaging the dozens of fainter comets visible annually, serving as a valuable opportunity for astrophotographers to enhance their technical skills with existing deep-sky ...

Comet C/2025 A6 Lemmon on Oct. 11, 2025, as imaged by Gianluca Masi at The Virtual Telescope Project (www.virtualtelescope.eu). The Northern Hemisphere’s night skies this October are building toward ...

The comets A6 (Lemmon) and R2 (SWAN) are visitors from the chilly fringes of our solar system, and could even be visible at the same time. By Marina Koren If you like comets, this month is shaping up ...

A pair of once-in-a-lifetime comets is rocketing through our skies right now, and it's a rare treat because they won't be back for hundreds of years. The comets, C/2025 A6 (Lemmon) and C/2025 R2 (SWAN ...

No two comets are exactly alike. Of course, they can appear similar. Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) and ...

During the past few years, we have witnessed a bumper crop of bright naked-eye comets, beckoning us to set up a camera and record their beauty to share with friends and family. However, the next great ...