A team of astronomers has discovered the most-distant body ever observed in our Solar System. It is the first known Solar System object that has been detected at a distance that is more than 100 ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

Called 3I/ATLAS, the object is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system ...

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

Interstellar Particles Hiding In Our Solar System Unlike large, fast-moving objects like ‘Oumuamua, interstellar dust and debris from Alpha Centauri could be much harder to detect.

The potential detection of objects lying beyond the Kuiper Belt's limits may upend our understanding of what encircles our solar system.

Astronomers have spotted 3I/ATLAS, just the third interstellar object ever seen in our solar system. Bigger, faster, and possibly far older than ‘Oumuamua or Borisov, this icy traveler could help ...

The Subaru Telescope may have spotted a group of mysterious objects orbiting in a ring at the edge of our solar system, sparking scientific interest.

With JWST and other telescopes, we now have the tools to tell the difference between an intelligent visitor and an interstellar 'dark comet' like 'Oumuamua. Let's not get fooled.