1 day ago · Discovered over the summer, the comet known as 3I/Atlas will pass within 167 million miles of our planet on Friday. That's as close as it will get on its grand tour of the solar system.

A comprehensive list of bright and interesting comets visible today, updated with fresh data multiple times per day.

21 hours ago · The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet as it ever will.

1 day ago · The interstellar comet known as 3I/Atlas will pass within 167 million miles of our planet Friday – the closest it gets on its grand tour of the solar system. Here's what to know.

1 day ago · The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close.

1 day ago · Wondering what 3I ATLAS is all about? Here's what to know as interstellar comet 3I/ATLAS nears Earth this week, when to watch and how to see it.

We have highlighted 97 comets with a magnitude of 20 or less that are more likely to be observable. The list updates regularly to reflect changes in visibility, and we display only those …

1 day ago · A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as …

Dec 4, 2025 · Find out in our guide to which comets and asteroids are visible tonight and over the coming weeks. For help understanding what our brightness indicators mean, read our guide to …

High precision real time tracking tool for Comet 3I/ATLAS which can be used identify Comet 3I/ATLAS and follow its movements across deep sky stellar fields.