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 3I/Atlas will pass within ...

Interstellar comet 3I/ATLAS will make its closest approach to Earth this month, whizzing by at 270 million kilometers (168 million miles) away, putting on a show for anyone equipped even with a small ...

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Comet Lemmon will make its closest approach to Earth on Tuesday night. The comet can be seen with the naked eye and should be visible between 6:45 p.m. and 7:45 p.m. Clouds and rain could make ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on December 19, 2025, revealing chemical secrets from a distant star system.

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