Japan’s experimental reusable rocket took off and safely landed in a first test flight Saturday, as the country seeks to achieve the technology key to cut launch costs and compete in the global space market dominated by SpaceX.The RV-X rocket lifted off, hovered and moved horizontally before landing during its less than one-minute flight at the Japan Aerospace Exploration Agency’s Noshiro Testing Centre in northeastern Japan, which was livestreamed by the NVS, a group of space fans.Japan has been seeking to catch up with the technology SpaceX has been using for years to cut launch costs of delivering payloads into space.