Astronomers say that mysterious interstellar visitors like 'Oumuamua and 3I/ATLAS are the most common large bodies in the ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...

Astronomers worldwide are tracking 3I/ATLAS, the third confirmed interstellar object, currently traversing our solar system.

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's ...

Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth ...

The third interstellar object ever observed is in our neighborhood—for now. And, asteroid Bennu could contain dust from ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the discovery of Pluto in the 1930s. Labelled as Planet X, prominent astronomers ...

Carbon dioxide has been detected on a planet outside our solar system for the first time. The gas has been observed directly by the James Webb Space Telescope on four exoplanets, all belonging to the ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...