NASA said the comet poses no threat to Earth and will stay at a distance of some 240 million kilometers. It is now at a distance of some 4.5 astronomical units (some 416 million miles or 670 million ...

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of planets ...

It's too soon to know whether the object is a rocky asteroid or an icy comet, or how big and what shape it is.

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

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

A mysterious object the size of Manhattan, originating from outside our Solar System, has been spotted by astronomers.

Comet 3I/ATLAS will get as close as 210 million kilometers (130 million miles) from the Sun, far beyond the orbit of Earth, ...

A mysterious object from outside our solar system has been spotted by astronomers — and is heading our way. The discovery was ...

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.

An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

Astronomers are reporting the detection of a large object entering our solar system, and it is causing quite the stir in the ...