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 ...

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.

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 ...

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 ...

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

For now, the alien spacecraft theory remains unproven. Advocates insist that more studies and evidence are needed before they can declare that 3I/ATLAS is anything other than a comet. Until then, the ...

The comet, discovered in July 2025, originated far beyond our Solar System and is thought to be around 7 billion years old - ...

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 ...