For decades, the search for extraterrestrial intelligence (SETI) has largely operated on the assumption ...

"As far as I know, there are no protocols for responding to the discovery of functioning alien devices near Earth." The post Astronomer Estimates 30-40 Percent Chance Mysterious Interstellar Object Is ...

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 ...

What if aliens were building a massive power plant?Last time, I talked about the "Kardashev scale," which classifies the ...

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 ...

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 ...

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 ...

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

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 ...

When ET phones home, it could be his last call. Contrary to sci-fi movie depictions, our first contact might not be with a super advanced alien civilization at the height of power. Rather, Ivy League ...