Japanese researchers say they are working to build the world’s first satellite made of wood. The goal is to help fight the problem of space junk. Space junk includes things like dead satellites, lost pieces of equipment and small pieces of paint. Such objects can present threats to spacecraft and satellites operating in space. The project is a joint effort involving the company Sumitomo Forestry and Japan’s Kyoto University. The development team recently announced plans for the satellite in a news release. The researchers say the wooden satellite, which they call LignoSat, is one of several planned projects that seek to explore how wood might be used in space in the future.