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

Scientists have pieced together a pretty clear picture of what life was like on Earth thousands, even millions of years ago.

Add Yahoo as a preferred source to see more of our stories on Google. A high-frequency SETI search using ALMA opened new radio bands and showed that past surveys may have covered millions more stars. ...

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 ...

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

We’ve likely had at least one close encounter of the 3I kind before. Harvard scientist Avi Loeb claims that not only does 3I/ATLAS potentially have alien origins, but that this wouldn’t be the first ...

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 ...

For as long as we’ve been exploring space, the search for alien intelligence has followed a familiar script. We point antennas at the sky. We listen for radio signals. We scan for massive structures ...

For decades, SETI researchers have focused on finding narrow-band radio signals that might stand out from the natural universe. But what if an advanced civilization that wanted to communicate would ...

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 ...