If you have kids, you're going to get the inevitable question: Where did the universe come from? And you're likely going to take a long pause before trying to present the science of the big bang. Before you head down that path, know this: CERN physicist Tom Whyntie has created a new TED-ED video that explains, in three animated minutes, how the universe began, why it's expanding, and other basic phenomena that concern cosmologists and particle physicists. Phew. By the time you're done, you might be eagerly awaiting a where-do-babies-come-from video. That's hopefully somewhere in TED-ED's media pipeline too.