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

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. 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 ...

We may be missing out on ultra-narrow radio signals sent by technologically advanced civilizations, a new study claims. The study shows that a star’s violent eruptions near an alien planet may distort ...

Scientists estimate 36 alien civilizations could be lurking in the Milky Way right now—here's the math behind this ...

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 ...

When gazing at the countless stars shining in the night sky, have you ever wondered about this?"Is there life other than on ...

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 ...

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 ...

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 ...