In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the solar system. These ...

Interstellar object 3I/ATLAS — which is zooming through our inner solar system — appears to be emitting its own light, ...

Hubble has taken the clearest image to date of the interstellar comet 3I/ATLAS, which is racing through our solar system at ...

Astronomers have spotted only three objects known to have come from outside our solar system. The newest, called 3I/ATLAS, is already raising eyebrows. First seen this summer, it doesn’t quite behave ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

Astronomers found hidden cosmic channels, like tunnels, connecting our solar system to distant stars, reshaping views of ...

That strange interstellar object flying by us may, according to one outlandish astronomer, have been sent by aliens to see ...

The most striking science photos of the week: including the Perseid meteor shower and glowing underwater wonders.

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