Japan launches world’s first wood-panel satellite to test timber’s viability in space

Measuring only 900 grammes, it will shortly circle the planet, putting its hardwood panels to the test in the harsh environment of space.

Screenshot 2024 11 06 at 3.52.53 PM
Takao Doi, a former Japanese astronaut and professor at Kyoto University, holds an engineering model of LignoSat during an interview with Reuters at his laboratory at Kyoto University in Kyoto, Japan, October 25, 2024. Photo Credit: REUTERS/Irene Wang/File Photo

In an effort to determine whether wood could be a sustainable material for upcoming space missions, Japanese researchers launched the first wood-panel spacecraft into orbit. LignoSat is a special satellite that was just launched on a SpaceX mission that was headed to the ISS. Measuring only 900 grammes, it will shortly circle the planet, putting its hardwood panels to the test in the harsh environment of space.

The LignoSat Project: An Experiment in Sustainable Space Materials

LignoSat, named after the Latin word for “wood”, which was created by researchers at Kyoto University, uses panels made of magnolia wood that are held together without the use of glue or fasteners. The satellite is a component of a larger project to investigate environmentally acceptable materials that might take the place of metals in space engineering. “Wood actually fares better in space than on Earth because there’s no moisture or oxygen to cause rot or ignite,” said Professor Koji Murata, a forest science expert involved in the project.

Exploring the Feasibility of Wood in Space Engineering

Utilising wood in space is not wholly unrealistic. Since wood was actually frequently used to build aircraft in the early 20th century, Murata, explaining the concept to Reuters, thinks it makes sense to investigate its possibilities for contemporary space travel. If successful, wood may be produced on other worlds, like Mars, and used as a renewable resource in off-Earth settlements to construct tools or shelters.

Gathering Data on Wood’s Durability in the Harsh Space Environment

Sensors are incorporated into the satellite’s structure to examine how wood fared in the vacuum of space, even though the structure also included conventional aluminium and electronic components. During its six-month orbit above the planet, the satellite will gather vital information about how long-lasting wood is in the hostile environment outside of our atmosphere.

Cautious Optimism from the Scientific Community

Some scientists remain cautiously optimistic. Dr. Simeon Barber, a space research scientist at the Open University in the UK, noted that while the satellite isn’t entirely wooden, the idea itself could pave the way for more sustainable materials in space. “Wood can be grown, making it renewable. For centuries, explorers used wood to build shelters in new lands, so it’s fascinating to think we might one day do the same on the Moon or Mars,” ,” Dr. Barber explained.

Historical Use of Wood in Aerospace and Spacecraft

Interestingly, wood had previously been used on spaceships in various ways. For instance, cork has long been used to shield ships during atmospheric re-entry. Cork was also used by Russian lunar landers to increase surface grip. Dr. Barber says that although wood has certain drawbacks, it can be useful in some situations when extreme durability isn’t necessary.

Potential Environmental Benefits of Wood-Based Spacecraft

In addition to addressing space pollution, the Kyoto University team thinks wood-based spacecraft could burn up more cleanly upon re-entry than metal. This experiment may provide information for creating more ecologically friendly spaceship designs, as space debris is becoming an increasingly significant issue. Dr. Barber cautions that using wooden materials might not completely address the sustainability problems with space because additional resources might be required to make up for the unexpected qualities of wood.

As LignoSat begins its journey, scientists worldwide eagerly await the results, which may redefine the materials we use to explore the final frontier.

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