Ground Tests Are Go: What To Know About Radian’s Prototype Spaceplane

On September 25, 2024, Seattle, Washington-based Radian Aerospace issued a statement saying that it had completed the first round of ground taxi tests with its single-stage-to-orbit (SSTO) space plane, the Radian One, billed as the world’s first fully reusable space plane. The tests, which took place in Abu Dhabi, were designed to test the spacecraft’s low-speed takeoff and landing characteristics.