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 ...

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

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