Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

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 ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Researchers at the SETI Institute found no evidence of alien technology after analyzing radio signals from the object. 3I/ATLAS was the third comet ever discovered originating from outside our solar ...

Here’s what you’ll learn when you read this story: Every time an interstellar object comes whizzing into our Solar System, it brings with it a certain intrigue. Where is it from? How did it form? Why ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

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 ...