Fifty years ago today, the Saturn V rocket took off from Kennedy Space Center in Florida, carrying the first men to walk on the moon. Today, we’ll mark that milestone by looking ahead to the exploration, colonization and militarization of space. By some estimates, the current space economy is worth $400 billion, and it could reach $1 trillion by 2040. Here to break it all down with Molly Wood is Marketplace’s de facto space reporter Kimberly Adams and Politico’s Jacqueline Feldscher, who co-writes their space newsletter. Plus, we’ll hear from a “space architect,” which is apparently A Thing.