Did long-ago aliens venture to our planet lugging technology that shaped humans' religious beliefs and technological advances? As co-executive producer of the TV series "Ancient Aliens," Tsoukalos ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Archaeologists ...

The 60 Best Sci-Fi Movies of All Time Why haven’t we found aliens? A physicist shares the most popular theories "Imperative for us to acknowledge this reality": Assam CM advises against ...

(CNN) — Archaeologists working in an ancient Mayan city have unearthed a mysterious 1,700-year-old altar whose bright decorations and grim contents may hold the key to unraveling the complex ...

A new discovery unearthed by an international team of archeologists in the heart of modern-day Guatemala has put another piece in the puzzle revealing a turbulent period of time of the ancient ...

Action Bronson dabs with special guests Schoolboy Q and Earl Sweatshirt to theorize that dinosaurs were selectively killed off by Ancient Aliens. Action is joined by Riff Raff, Andy Milonakis and ...