We've got a special episode for you today from our friends at Short Wave. We all think about the Big Bang as the moment when our universe—everything in existence—began right? Turns out, it's not quite that simple. Today when scientists talk about the Big Bang, they mean a period of time, closer to an era rather than a specific moment. Short Wave host Regina Barber talks with two cosmologists about the cosmic microwave background, its implications for the universe's origins and the discovery that started it all. This episode is part of Short Wave's Space Camp series; you can find more here: https://www.npr.org/series/g-s1-3299/short-wave-space-camp Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy