The Incas used stringy objects called 'khipus' to record data—we just got a step closer to understanding them
For more than a millennium, many Andean peoples used an object called a "khipu" (also spelled "quipu" and pronounced "key-poo ...
A formula for life? New model calculates chances of intelligent beings in our universe and beyond
The chances of intelligent life emerging in our universe—and in any hypothetical ones beyond it—can be estimated by a new ...