The world's first wooden satellite, a tiny Japanese spacecraft called LignoSat, arrived at the International Space Station (ISS) today (Nov. 5) aboard a SpaceX Dragon cargo capsule. LignoSat measures just 4 inches (10 centimeters) on each side,

The first satellite in space made mostly of wood arrived at the International Space Station on Tuesday along with other research and supplies.

Japanese researchers just sent the world’s first wooden satellite to space, as reported by CNN. LignoSat, named after the Latin word for wood, was developed by Kyoto University and a company called Sumitomo Forestry.

The tiny satellite built by Japan will test the suitability of timber as a renewable material in space.