Most people imagine first contact as a meeting with flesh-and-blood extraterrestrials, but this theory argues that advanced ...

For decades, humans have scanned for signals of alien technology emanating through the galaxy. The search highlights the contradiction between the abundance of planets and stars that stretch across ...

We tend to imagine advanced civilizations as empires rooted to worlds, borders, and megastructures. But this episode explores ...

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper. Reading time 3 minutes In our search for life beyond Earth, we might ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian civilizations after sharing footage that appeared to depict a “three-sided pyramid” on ...