Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...

A team of international astronomers, including a University of Michigan doctoral student, were the first to publish the ...

A cosmic traveler from another star system is currently visiting our solar neighborhood. Scientists are closely observing ...

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

Scientists discover 3I/ATLAS, a possible 7-billion-year-old comet from deep space. It may rewrite what we know about the ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

The first interstellar object spotted in our Solar System was the cigar-shaped ‘Oumuamua, discovered in 2017 by the Pan-STARRS1 telescope in Hawaii. Scientists tracked it for 80 days before eventually ...

The astronomical community is abuzz over a newly discovered "interstellar object," only the third of its kind ever seen, ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

The comet should be visible by telescope through September, before it gets too close to the sun, and reappear in December on the other side of the sun.

An interstellar object has been spotted zipping through our solar system, and amateur and professional astronomers around the world are now racing to train their telescopes in its direction ...