Earth’s deep past leaves plenty of unanswered questions. None currently proves an alien visit, but scientists know the ...

The Fermi Paradox asks a simple question: if alien civilizations should be common, where is everybody? The Zoo Hypothesis ...

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

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. ...

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most basic statistics point toward the existence of countless potentially ...

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

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 ...

In 1950, famed astrophysicist Enrico Fermi posed a profound question during a casual lunch with colleagues: Where is everybody? In other words, if there’s an extremely high probability that advanced ...

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 ...

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 ...