With infinity, we made a monster. Our minds demand that it should exist – only to rapidly melt at the consequences of a concept that is, by definition, too big for our brains. The pleasure and the ...

Have you even thought deeply about Buzz Lightyear's famous catchphrase from the "Toy Story" movies? Probably not. But maybe you've sometimes looked up at the night sky and wondered about the nature of ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...