In the panorama of space astronomy, a new project from NASA and JAXA introduces a different approach: the use of wood for the construction of satellites. LignoSat, which is expected to launch in 2024, represents an important step towards more environmentally friendly space exploration.
Why a wooden satellite?
The choice of magnolia wood as a material for the small satellite it might seem unusual, but it turns out to be a strategic choice to reduce environmental impact. With the increase in light pollution due to metal satellites, LignoSat presents itself as an innovative and sustainable solution, which could positively influence future space missions.
Space pollution has become a growing problem, with over 9.300 tons of debris orbiting the Earth. This debris, which includes inactive satellites and fragments of rocket stages, not only poses a threat to space infrastructure like the ISS, but also contributes to light pollution, making astronomical observation from our planet more difficult.
LignoSat, the advantages of wood
Unlike the metals traditionally used in the construction of satellites (think of those of Starlink), wood does not increase the brightness of the night sky. Furthermore, unlike metal satellites, which can pose a risk to the ISS and crewed missions, wooden satellites are considered less dangerous as space debris.
Magnolia wood, in particular, was chosen for its strength and durability properties, as well as its lower likelihood of splitting or breaking during manufacturing.
Another important aspect of LignoSat is its biodegradability. Metals can remain in orbit for decades or even centuries, while LignoSat's wood is designed to incinerate upon re-entry into Earth's atmosphere, leaving very little debris. This feature could represent a huge step forward in reducing the environmental impact of space missions.
A natural step towards the future
LignoSat is not only a scientific experiment, but also a symbol of a shift in thinking about space exploration. It represents a step towards a future in which sustainability is at the center of technological progress: with this project, NASA and JAXA demonstrate that it is possible to combine technological innovation and environmental responsibility.
LignoSat could pave the way for new satellite design and construction methodologies. I can't wait for the new year to see wood go into space too. Eternal glory!
