Scientists recently detected something unusual entering our Solar System, sparking discussions about whether it is a comet or ...

Humanity has already sent five spacecraft on trajectories that will eventually carry them beyond the Solar System, ...

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

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 ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

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

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 ...

Our search for technosignatures—clear signs of advanced civilizations beyond Earth—takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological ...

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