New images of the 33-million ton interstellar object confirmed it is releasing a nickel alloy commonly used in the aerospace ...

Astronomers have made an unexpected and groundbreaking discovery in our solar system—a ring system forming around Chiron, a ...

I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some ...

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system.

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

Observations made by NASA's Neil Gehrels Swift Space Observatory have revealed that the interstellar object 3I/ATLAS ...

NASA recently launched a telescope designed and built by UMass Lowell and the space agency that seeks to identify planets beyond the solar system and other objects in space that would ...

The images offer the closest view yet of comet 3I/ATLAS, famous for being only the third known interstellar object to pass ...

A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending ...