The Hubble Space Telescope has snapped some spooky looking photos of our solar system's newest interstellar invader on the ...

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

The Vera Rubin telescope is poised to kick off an explosive era of discovery. "It's like old-fashioned astronomy: Find the ...

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.

A mysterious new interstellar object, 3I/ATLAS, was discovered in July. It turns out that wasn't the first time our ...

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

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

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

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

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

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