An aircraft that can carry passengers and payloads out of the Earth’s atmosphere and back is set to revolutionise space missions. Radian Aerospace, a US-based company, is preparing to test a scale model of its “spaceplane” this year, which could impact the way space travel is conducted if successful. The company was founded in 2016 with the goal of reviving the dream of a Single-Stage-To-Orbit (SSTO) spaceplane – a goal that NASA attempted through the Lockheed Martin X-33 programme before ceasing funding in 2001. The new spaceplane, called Radian One, is set to be fully reusable and is designe…