Answer: Japan
Notes: Japan will test the world's first wooden satellite, LignoSat, developed by Kyoto University and Sumitomo Forestry. It will be launched on a SpaceX rocket and sent to the International Space Station. LignoSat, made from Japanese honoki wood, will orbit for six months to test wood’s durability in space. Wood, unlike metal, doesn’t rot or catch fire in space, and it burns up cleanly upon reentry without polluting. Former astronaut Takao Doi envisions this as a step toward using wood for sustainable construction on the Moon and Mars, like planting trees and building timber houses.
