Beyond the fact that this is the third known interstellar object to have entered our solar system, “we don’t know very much,” ...

Priscilla Diane Chapman Frisch, a University of Chicago Research Professor in Astronomy and Astrophysics and a world-leading ...

Sometimes, "the universe comes to us," writes the European Space Agency — the third time now since 2017. What is it and are ...

NASA’s New Horizons spacecraft has successfully demonstrated a revolutionary method for deep space navigation, as the probe ...

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

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

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

I/ATLAS is only the third interstellar object ever detected. You can stream the object live today, or maybe see it from your ...

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

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

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

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