The Air Force's fiscal year 2022 budget request reveals the addition of a fourth Vanguard program -- an effort to use commercial reusable space launch technology to quickly transport cargo around the globe. The Rocket Cargo program joins the Air Force Research Laboratory's three original Vanguard efforts: Skyborg, Golden Horde and Navigation Technology Satellite-3. Working closely with industry and U.S. Transportation Command, the service is preparing for an end-to-end testing in FY-22, according to budget justification documents. The service is...