A new era of space defense

For many of us, the idea of a space-based arm of the military calls to mind images from science fiction. But the real-life world of space defense has become increasingly integral to military operations on land, at sea, and in the air. In this episode of Next Giant Leap, hosts Mike Massimino and Mike Greenley explore the world of space military technology. Guests Major General (Ret.) Kim Crider formerly of the United States Space Force, and Brigadier-General Chris Horner of the Canadian Space Division walk us through the many innovations in this fascinating arena, and attempt to answer one crucial question: how do you secure a domain with no borders? Hosts: Mike Massimino, Mike Greenley Guests: Kim Crider, Chris Horner   Subscribe to the GZERO World with Ian Bremmer Podcast on Apple Podcasts, Spotify, or your preferred podcast platform, to receive new episodes as soon as they're published.