Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar ...

A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

The size of the Solar System and the Universe is truly beyond our comprehension. When we think of the vastness of space, we ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...