Comet C/2025 A6 (Comet Lemmon) made a striking appearance in 2025, becoming visible to the naked eye and exceeding astronomers' expectations for brightness. A dramatic image captured from Hawaii's ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

When an interstellar visitor slices through the solar system, astronomers usually have to make do with a fleeting, side-on ...

Comet Lemmon was discovered in January 2025 and made its closest approach to Earth in late October 2025. But by November 2025, when this image was taken, it had brightened to about the same apparent ...

Comet 3I/ATLAS, an interstellar visitor, reaches its closest approach to Earth on Dec 19 at about 167 million miles - visible ...

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet that originated outside of our solar system and was discovered passing ...

Comet 3I/ATLAS, a rare interstellar visitor, is visible this week as it departs the solar system, with some public events ...

While online conspiracies swirl, comet 3I/ATLAS made a close pass by Earth on Dec. 19, giving astronomers a rare glimpse of a ...

Our galaxy is packed with wonders and mysteries—and no, this isn’t a pitch for the next Star Wars series. We’re talking about a real-life event that only happens once every 80,000 years in the ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

The interstellar comet 3I/ATLAS, which has captivated astronomers worldwide for months, safely passed Earth early this morning. At approximately 06:00 GMT, the object reached its closest approach, ...

"I had only 1 night to grab this shot, and only about 1 hour to do it." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In a race against the ...