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Japanese scientists revealed plans to launch the world’s first wooden satellite, LignoSat, this summer.
Crafted from magnolia wood, known for its stability and resistance to cracking, this innovative spacecraft represents a shift in satellite construction, aiming at exploring the feasibility of using biodegradable materials in space.
LignoSat, created researchers at Kyoto University and Sumitomo Forestry, is an important step toward reducing the environmental impact of space exploration.
Japanese scientists prepare to launch LignoSat, the world’s first wooden satellite, made from magnolia wood, aiming to reduce environmental impact and explore sustainable space exploration materials.
Satellite Made of Wood
According to the scientists behind the satellite, the decision to explore wooden satellites “without harmful byproducts” arises from growing concerns over the environmental consequences of traditional satellite construction.
A National Oceanic and Atmospheric Administration (NOAA) study found aluminum and exotic metals in 10% of sulfuric acid particles, dominant in the stratosphere. These metals matched alloys in spacecraft, confirming reentry vaporization. Aluminum, lithium, and copper levels surpass cosmic dust input.
By contrast, wooden satellites like LignoSat are poised to address these concerns as they burn up upon reentry, leaving behind only biodegradable ash.
Testing the Wood
Extensive testing conducted the Kyoto University team has demonstrated the remarkable durability of wood in space-like conditions. “Wood’s ability to withstand simulated low earth orbit (LEO) conditions astounded us,” Koji Murata, head of the space-wood research effort and member of the Biomaterials Design Lab at Kyoto University’s Graduate School of Agriculture, explained.
Wood samples subjected to rigorous experiments aboard the International Space Station (ISS) showcased minimal signs of deterioration, proving the material’s resilience to the harsh realities of space.
Moreover, magnolia wood emerged as the optimal choice for satellite construction, with its exceptional dimensional stability and resistance to environmental degradation.
Also, previous studies conducted in earthbound labs demonstrated wood’s surprising ability to withstand temperatures ranging from -150 to 150 degrees Celsius.
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The Satellite’s Mission
The satellite will undertake a series of experiments to assess its performance in orbit, particularly focusing on wood’s susceptibility to deformation and dimensional changes.
If successful, LignoSat could pave the way for a new era of sustainable satellite construction, addressing the pressing need for environmentally friendly space exploration initiatives.
Despite the groundbreaking nature of this endeavor, challenges still need to be addressed, particularly concerning the logistics of the satellite’s launch. While plans are in place for a summer launch, the final decision on the launch vehicle- whether it is an Orbital Sciences Cygnus supply ship or a SpaceX Dragon mission- remains pending.
Nevertheless, researchers express confidence in the project’s feasibility and anticipate LignoSat’s operational lifespan to extend at least six months in space.
As the countdown to LignoSat’s launch begins, anticipation mounts within the scientific community.
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