"It could represent some of the oldest and most pristine water ever observed, formed in another planetary system and ...

On July 1, astronomers spotted an unusual high-speed object zooming towards the sun. Dubbed 3I/ATLAS, the surprising space ...

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday ...

"The consequences, should the hypothesis turn out to be correct, could potentially be dire for humanity," said Avi Loeb.

Detailed photos from the newly operational Vera C. Rubin Observatory have revealed that the recently discovered interstellar ...

Loeb points to several unusual traits that set 3I/ATLAS apart from typical comets. "The retrograde orbital plane of 3I/ATLAS ...

A newly discovered object speeding through our solar system could be something far stranger than a comet, possibly even alien ...

The photos reveal a bright and well-developed coma, the cloud of gas and dust surrounding the comet's nucleus, with striking ...

A newly discovered interstellar comet may be carrying the oldest water in the universe — and it's now passing through our ...

Avi Loeb, known for his theories on aliens, thinks that the interstellar object in our solar system is a spacecraft sent by ...

The comet was discovered on July 1 by the ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope. Knowing ...