A recent resurgence of interest in a bold cosmological theory has reignited debate about the nature of dark matter, the Big ...

Planet Money The economy, explained, with stories and surprises. Imagine you could call up a friend and say, "Meet me at the bar and tell me what's going on with the economy." Now imagine that's ...

Charles Robinson has been a senior writer for Yahoo Sports since 2004, specializing in NFL and investigative reporting. Follow him on Twitter @CharlesRobinson.