Scientists searching for advanced alien civilizations have detected a mysterious signal in data from the world's largest ...

Are humans alone in the universe, or could intelligent alien civilizations exist somewhere beyond Earth? For more than 60 ...

Finding a signal from an extraterrestrial civilization takes more than just pointing a telescope in the right direction. We ...

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 ...

Alien life may not need the kind of home humans instinctively search for. Some of the strangest possibilities begin once ...

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how to introduce itself, it faces a less dramatic question: how much mass should ...

Add Yahoo as a preferred source to see more of our stories on Google. The great physicist Enrico Fermi first posed the challenging question over half a century ago, wondering why we appear to be alone ...

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 Bulgarian mystic Baba Vanga in his 2026 year’s prophecy. Famed ...

It would probably not be the first question we asked, and it would not be the most urgent. But it could be one of the most revealing. Did another intelligent species develop ideas about gods, souls, ...

Black holes appear built to hide energy, not advertise it. Yet a civilization wrapping one in vast collectors could create a detectable glow, turning one of the universe’s darkest objects into a ...