'Blazing a trail for sustainable space exploration': World’s first wooden satellite deployed into Earth’s orbit

Artist’s impression of LignoSat (Image: Kyoto University)

The world’s first wooden satellite, LignoSat, is now orbiting Earth. Deployed last month, it was one of five CubeSats launched, orbiting 400 kilometres above the planet. It reached the International Space Station last November via a SpaceX Dragon capsule.

A Sustainable Innovation
LignoSat, weighing 900 grams, is made of magnolia wood. It features 10-centimetre panels assembled using traditional Japanese joinery. This method avoids screws or glue, showcasing sustainable craftsmanship. Its mission aims to explore wood’s durability in space.

A traditional Japanese wooden joining method, the Blind Miter Dovetail Joint, is used for LignoSat to connect two wooden panels without using glue or nails. (Image: NASA)

The satellite's findings could offer alternatives to conventional materials like aluminium or titanium. This could reduce environmental impact and promote sustainability in space technology.

Pioneering Space Applications
LignoSat's onboard sensors will monitor wood’s response to extreme conditions. It faces temperature swings from -100°C to 100°C every 45 minutes. Researchers will also study its shielding capabilities against geomagnetic fields.

Three CubeSats are deployed from space station, including LignoSat. (Image: NASA)

The satellite's performance may support future lunar and Mars missions. Kyoto University scientists say wooden satellites could address space debris concerns. Unlike conventional satellites, they burn completely upon re-entry, leaving no long-lasting debris.

Astronaut Takao Doi highlighted timber’s potential for space living. “With timber, we can build homes and workspaces in space,” he said. Wood’s resilience in space, free from water or oxygen, adds to its appeal.