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

Using data from the Vera C Rubin Observatory, experts have revealed just how big the object, dubbed 3I/ATLAS, really is.

A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

Astronomers propose a giant, hidden planet beyond Neptune to explain odd orbits of distant Kuiper Belt objects.

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

What we know about the search for ‘Planet Nine’ in our solar system - The idea of a massive undiscovered planet has been ...

Astronomers are tracking a newly spotted comet, named 3I/ATLAS, hailing from parts unknown. It is only the third time such an ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's not aliens.) The interstellar comet, originally called A11pl3Z and now ...

Breaking News, Sports, Manitoba, CanadaAstronomers track object that may have originated outside the solar system By: Marcia Dunn, The Associated Press Posted: 1:40 PM CDT Wednesday, Jul. 2, 2025 ...

CAPE CANAVERAL, Fla. (AP) — Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have discovered what might be only the third ...

CAPE CANAVERAL, Fla. (AP) — Astronomers are monitoring an object headed our way that may have wandered over from another star system.

An artist's rendition of a rocky object in the Kuiper Belt, a distant outer region of the solar system potentially reachable by the New Horizons spacecraft by 2018. (NASA, ESA, and G. Bacon (STScI)) ...