Do you really know your family? Playing a game could help you find out. Whether you need something to start the conversation at a holiday meal or simply want to get to know your family better, these ...

From using words to overthrowing regimes, shared awareness is necessary for people to coordinate. The cognitive scientist explains to Nature how it works. When Everyone Knows That Everyone Knows...: ...

Like millions of Americans, you probably have strong feelings about how the president should lead, what Congress should do and how the courts should rule, but do you know what gives them those powers ...