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

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

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

A comet has entered the Solar System from interstellar space and will pass through the inner planets later this year, NASA ...

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

An interstellar tourist is taking a quick trip through our solar system, becoming one of just three known objects to ever do ...

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

A recent study has uncovered a dramatic interaction between a planet and its parent star that is reshaping our understanding ...

Astronomers spot a mysterious object from interstellar space. The object, 3I/Atlas, is traveling at 60 km/s. It poses no ...

NASA has discovered a rare interstellar object named 3I/ATLAS—only the third of its kind ever detected. The comet, which ...

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...