The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

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 ...

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 ...

Then there was the September discovery of C/2025 R2 (SWAN), a comet so bright that even when it was near the moon on Halloween, it was still quite visible to observers. And there was comet 3I/Atlas, ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet C/2025 A6 (Lemmon) with a glowing green coma and ...

In a rare double cosmic treat and once-in-a-lifetime opportunity, stargazers can look to the night sky for two rare comets through October 2025 — and Comet Lemmon and Comet SWAN are visible starting ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.