Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with ...

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 ...

A new image of the interstellar object 3I/ATLAS released by NASA has raised questions among astronomers and could change ...

The rare 3I/ATLAS alignment on Jan. 22 coincides with the 'opposition surge' phenomenon. Learn the mystery of this 13-billion-year-old visitor.

NASA's SPHEREx and Hubble find mysterious 3I/ATLAS behaving strangely after perihelion. The interstellar visitor's 'mini-jets ...

A silent traveler has recently made its presence known in the dark velvet of our solar system. This has sparked a debate that goes back to the very beginning of time. 3I/ATLAS, the third interstellar ...

Harvard's Avi Loeb says a rare sun alignment on 22 January could prove interstellar visitor 3I/ATLAS is an alien spaceship.

Harvard astrophysicist Avi Loeb joins "ChicagoLIVE" with the latest update on 3I/ATLAS, the mysterious interstellar object ...

Interstellar comet 3I-ATLAS is a rare cosmic visitor that may be older than our Sun, offering scientists a unique glimpse into the early Milky Way. Its ancient origins and unusual composition could ...

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 ...

The mysterious interstellar comet 3I/ATLAS is making its closest approach to Earth on Friday, offering scientists a rare opportunity to study an object born around another star. Space agencies are ...