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 ...

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

The universe is getting ready to show us a rare, shadowless view of the deep unknown. Earth, the sun, and the mysterious interstellar visitor known as 3I/ATLAS will all line up almost perfectly on Jan ...

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.

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

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 ...

NASA's 3I/ATLAS interstellar visitor sparks debate as Harvard's Avi Loeb suggests alien origins. Discover the 'X' shaped mystery defying the laws of physics.

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 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 ...

We’re mere days away from mysterious interstellar object 3I/ATLAS making its closest approach to Earth before it speeds back out of the solar system, never to be seen again. The object, which ...

A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...