Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...

A recent study has sparked intrigue by suggesting the existence of a mysterious object from beyond our solar system behaving like a “seed”, journeying across the galaxy and potentially giving birth to ...

Tiny interstellar visitors from other star systems are increasingly entering our solar system, with the latest, 3I/ATLAS, ...

The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's ...

Our solar system’s latest and only third known interstellar visitor is becoming more fascinating by the week. Spotted in early July, the object, dubbed 3I/ATLAS, is widely believed to be a comet. It’s ...

A strange object hurdling through our solar system from interstellar space may, according to one of academia’s most controversial astronomers, have been sent by aliens to see how smart we are. “It is ...

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...