The universe contains billions of potentially habitable worlds, yet humanity has found no confirmed sign of another ...

Confirmation of alien life would answer one enormous question and immediately create dozens more. Humanity’s reaction would ...

Experts believe ancient alien civilizations have been living on mars. See more in this clip from Season 1, Episode 7, ...

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how ...

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are dominated by several recurrent tropes. There's the invasion by a warlike ...

Cooperation between Russia and the United States in the field of scientific search for extraterrestrial life and alien ...

John Brandenburg—a plasma physicist at an aerospace development company—argues that there was an alien civilization on Mars. He cites data from NASA’s Curiosity rover, claiming that xenon levels on ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that signal has normally been based on our own current cutting-edge technology. But ...

Elon Musk’s plans for the future of SpaceX, and humanity, are rooted in an idea conceived in the 1960s when astronomers began to pick up mysterious, unknown radio sources in the cosmos. Soviet ...

In the coming month, humans are going to experience their first encounter with an alien civilization as predicted by blind ...