Scientists have examined the interstellar invader 3I/ATLAS, finding evidence that it is packed with water that could be older ...

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

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

The Vera Rubin telescope is poised to kick off an explosive era of discovery. "It's like old-fashioned astronomy: Find the thing, point telescopes at it, argue about it. It's going to be fun." ...

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

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar ...

The paper presented several anomalous characteristics of the object, which could indicate that it is not a comet at all but instead a directed craft.

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

The Gemini North telescope in Hawaii recently snapped a close-up of the comet that's captured the world’s attention.

When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the ...

A team of astronomers recently discovered the traveling space object, just the third of its kind to pass through our solar ...