For only the third time in history, astronomers have identified what they think is an interstellar object — and it could be ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

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

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

The comet should remain viewable through telescopes until September as it approaches the Sun, then emerge again in December on its outbound leg.

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