In October, a pair of comets known as Lemmon and SWAN also left trails of dust and gas as they continued along their vast ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

The path of comet 3I/ATLAS through the solar system has been predicted with an accuracy 10 times greater than previous ...

The rare interstellar comet, also known as 3I/ATLAS, was first discovered in July and has been photographed several times.

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system.

NASA on Wednesday released new images and data of Comet 3I/ATLAS, the rare interstellar object that set off weeks of ...

Spectroscopy of other stars has led to most discoveries of exocomet systems. In research led by University of Colorado ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

I/ATLAS will come closest to Earth just before Christmas, though it will still be 167 million miles away ...