An important event has taken place around 3I/ATLAS, as a group of eight images have been captured showing the appearance of ...

Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with Earth and the Sun, passing within just 0.69 degrees of the Sun-Earth axis.

Add Yahoo as a preferred source to see more of our stories on Google. NBC News' Gadi Schwartz reports on "3I/ATLAS," mysterious outer space object that is thought to be billions of years old, making ...

The mysterious interstellar object 3I/ATLAS has developed a strange 'heartbeat' that's making it glow more brightly as it nears Earth in just two weeks. New telescope observations revealed streams of ...

It may have made its closest approach to Earth last month, but the mysterious interstellar object 3I/ATLAS continues to fascinate astronomers as it now careens back out of the solar system, never to ...