LignoSat Wooden Satellite (Kyoto University)

LignoSat, the world's first wooden satellite, proved wood can survive in orbit; a follow-on is a potential solution on the horizon.

Image: Kyoto University via NASA.

The Five W's of LignoSat Wooden Satellite

Who

Kyoto University with Sumitomo Forestry; JAXA deployed it from the space station.

Source: NASA, JAXA’s first wooden satellite deploys

Source: Kyoto University, LignoSat report (UNISEC, Aug 2026)

What

A 10 cm CubeSat with a wooden structure, testing how wood handles strain, temperature and radiation in space.

Source: NASA, JAXA’s first wooden satellite deploys

When

Deployed December 9, 2024; reentered April 4, 2025.

Source: Kyoto University, LignoSat report (UNISEC, Aug 2026)

Where

Low Earth orbit, released from Japan's Kibo module on the International Space Station.

Source: NASA, JAXA’s first wooden satellite deploys

Why

A renewable structure that burns up more cleanly could cut the pollution satellites leave behind when they reenter.

Source: Kyoto University, LignoSat report (UNISEC, Aug 2026)

Impact Statement

University and company solution · demonstrated; follow-on on the horizon

Metal satellites leave alumina particles in the upper atmosphere when they burn up; wood burns away more cleanly. LignoSat, built by Kyoto University with Sumitomo Forestry from honoki magnolia panels joined without glue or nails, was deployed from the International Space Station by JAXA on December 9, 2024. It stayed in one piece until reentering on April 4, 2025, though no radio signal was received.

Source: NASA, JAXA’s first wooden satellite deploys

Source: Kyoto University, LignoSat report (UNISEC, Aug 2026)

Potential solution on the horizon

LignoSat follow-on. This is a potential solution Kyoto University is advancing. We expect to know more within the coming months and will keep you updated here.

Source: Kyoto University, LignoSat report (UNISEC, Aug 2026)

For Further Information: NASA, JAXA’s first wooden satellite deploys

Next: Explore Another Solution