This week is the U.S. Space Force’s third birthday. While a lot has been accomplished over the past 12 months, there is a lot more yet to do to make the service branch truly independent and first for purpose. This episode’s guests also reveal what they think were the biggest developments for space, in space, or from space for earth in the past year. Laura Winter speaks with Peter Garretson, a senior fellow at the American Foreign Policy Council, coauthor of “Scramble for the Skies The Great Power Competition to Control the Resources of Outer Space”; Chris Stone, a senior fellow for space studies at The Mitchell Institute for Aerospace Studies, and the author of “Reversing the Tao: A Framework for Credible Space Deterrence”; and Stephen Melvin, who has been involved military space operations in a variety of roles inside and outside of the government for years.