One of them is about 4.2 light years away - more than a whopping 24 trillion miles from Earth! Find out more here.

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

Recent research suggests that our solar system could already be hosting alien probes, potentially observing us from a distance. This idea aligns with a 2023 statement from a Pentagon UFO chief who ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The solar system has a few ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks ...

The search for life isn’t limited to distant exoplanets—some of the most promising candidates may be right here in our own ...

A comet from another solar system has given rise to reports that it is in fact an alien spaceship. The comet – named 3I/ATLAS – was discovered this summer and led to excitement because it appears to ...

There may be 19 asteroids in orbit around the sun that come from somewhere else entirely. If true, we could visit an alien 'world' without ever leaving the confines of the solar system. Share on ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...

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

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

Our solar system might still bear the scars from an extremely close shave with an alien star. Such an encounter – the closest pass we know of – would have shaken up objects on the outskirts and might ...