Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS ...

After 545 entries from 155 photographers in 35 countries, the winners of this year’s Astrophotography Prize Photographer of ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

On July 1 this year, astronomers discovered an object moving through the Solar System at escape velocity, our third interstellar visitor that we know about. The object, dubbed 3I/ATLAS, is now known ...

The earliest images of 3I/ATLAS, newly uncovered by Michigan State University, reveal how the interstellar object evolved as it traveled through our solar system—and how other distant solar systems ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system.Video above: Astronomers discover how planets formThe Hubble Telescope and its Wide Field ...