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

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 ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

It's only the third time that experts have spotted an object in the Milky Way that's come from a different solar system. Find ...

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

The object — thought to be a comet — is only the third-ever confirmed interstellar visitor to pass through our cosmic ...

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

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

A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It was first discovered zipping near the sun this fall.