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

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 ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

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 ...

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 NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to rule them out. From misidentified rocket boosters to blurry moon maps, it ...

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 ...

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 ...