Everything you need to know to see Comet Lemmon — the brightest comet of 2025 — from key dates to viewing advice.

There will be two upcoming opportunities for optimal viewing of the newly discovered comet: once in early October and again ...

The viewing of the newly discovered comet will get better through this month. Here are some tips on finding the comet.

In October, a newly discovered comet will come so close to Earth that people may be able to make out its heavenly fireworks ...

Few cosmic visitors have captured the fascination of astronomers quite like the interstellar comet 3I/ATLAS. Hurtling through ...

October is a star-studded month with two meteor showers, winter constellations and a good chance to see a trio of green ...

While we haven't seen an interstellar comet being struck by a coronal mass ejection before, we have seen it happen to others.

The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.

A new study on interstellar comet 3I/ATLAS has found unusual and as-yet-unexplained metals in the object's coma. On July 1, ...

Enter the European Space Agency’s two Mars satellites, which now have their cameras pointed at 3I/ATLAS. The comet also could ...