A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is ...

Could the universe have more than three dimensions—and if it does, could life exist there? If higher-dimensional beings are ...

Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

Elon Musk reacts to a resurfaced video with a four-word tweet, reaffirming his long-term vision for travel beyond the confines of our solar system. Learn more about Musk’s vision of finding alien life ...

Star Trek Adventures’ new Species Sourcebook has rules for living your 4th-grade dream of creating your own Star Trek alien. We’ve all been there, right? Three paragraphs in to your latest fanfiction ...

Erich von Däniken, the Swiss author whose books on the extraterrestrial origins of ancient civilizations brought him both ...

Some scientific breakthroughs may be lost to time due to scandal and redaction, while others are simply a case of waiting for more evidence. We take a look back at some that made headlines—and that's ...

The sheer scale of Carrazco-Gaxiola’s survey, titled “An All-Sky Spectroscopic Reconnaissance of More Than 2,100 K Dwarfs ...

A major claim in the older media cycle was that NASA removed the book and related materials. Whatever happened during the original wave of reporting, the current reality is clear: NASA now provides an ...