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

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are ...

The solar system holds extraordinary wonders, from Voyager 1’s historic journey into interstellar space after traveling ...

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

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

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

New observations by the Gemini South telescope at Cerro Pachón in Chile revealed that interstellar object 3I/ATLAS' tail is ...

There are quite a few other places we might find life in the solar system, including dwarf planets like Ceres. Ceres is ...

As interstellar object 3I/ATLAS approaches its closest point to the Sun next month, astronomers are watching as the ...

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

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

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.