Penn State's Chris Palma told AccuWeather the top astronomy events to look out for in November 2025, including two meteor showers, a supermoon and a mysterious comet.

Comet 3I/ATLAS isn’t hiding from view; it has been coming from behind the Sun, making it hard for ground-based telescopes to track. That’s why we haven’t seen much of it yet. So no, this doesn’t mean aliens are sneaking up on us, just a tricky viewing angle and a bit of orbital geometry.

The past month has seen Comet C/2025 A6 (Lemmon) brightening rapidly ahead of its close approach to the sun, leading to growing excitement that it could shine brightly enough to be seen by the naked eye in mid-late October. Solar system comets tend to ...

In a rare doublecosmic treat and once-in-a-millennium visit from an icy green comet, stargazers can look to the night sky through October 2025 to view Comet Lemmon and Comet SWAN, which will be visible tonight, Tuesday, Oct. 21, just as the Orionid meteor ...

A rare interstellar visitor, Comet 3I/ATLAS, has re-emerged into our morning skies, offering amateur astronomers and the scientifically curious a chance to glimpse material formed around another star.

The comet could be older than our solar system. The comet is also distinct because nickel vapor was detected in the gas surrounding it.