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 ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) ...

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

Scientists found no alien signals from interstellar comet 3I/ATLAS after a fresh 7-hour radio scan.

Interstellar visitors don’t have this problem because they were never part of the solar system’s plane to begin with. ʻOumuamua entered from above the ecliptic in 2017 on a steeply tilted trajectory, ...

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 ...

Scientists have searched one of the only known visitors to us from another solar system for signs of alien technology – and ...

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets. When you purchase through links on our site, we may earn an affiliate ...