Nova | November 2022

Who created the Nazca lines, one of archaeology's greatest enigmas, and why? Recent finds of long-hidden lines and figures etched into the Peruvian desert offer new clues to the origins and purpose behind these giant desert symbols.
From Bitcoin to NFTs, what exactly are cryptocurrencies? And how do they work? Unravel the social and technological underpinnings of "crypto" – exploring the possibility that this new technology may change much more than just money.
The concepts of zero and infinity didn't always exist. They've been invented and re-invented by different cultures over thousands of years. Discover the surprising story of these key concepts that revolutionized mathematics.
Dogs have long been dependable companions by our sides. But it wasn’t always that way, and a look at their closest living relative, the wolf, makes it clear why. Research into dog domestication and intelligence offers clues into the human-dog relationship. And analyzing dogs’ brain activity and genes may even help answer whether dogs are in it for the food — or if they really love us.