Japanese Researchers Develop Wooden Satellite to Combat Space Debris

Japanese Researchers Develop Wooden Satellite to Combat Space Debris

In a groundbreaking endeavor, Japanese researchers have created LignoSat, a miniature wooden satellite aimed at reducing space debris upon re-entry into Earth’s atmosphere.


  • Collaboration: Kyoto University and Sumitomo Forestry partnered in the development of LignoSat since April 2020.
  • Material Selection: Magnolia wood, chosen for its strength and suitability after space exposure tests, was sourced from Sumitomo Forestry’s company forest.
  • Motivation: Traditional metal satellites contribute to harmful debris upon atmospheric re-entry, prompting the exploration of wooden satellites as a more sustainable alternative.


  • Specifications: LignoSat measures a mere 10 centimeters on each side.
  • Launch Details: Scheduled to launch aboard a SpaceX rocket from the Kennedy Space Centre in September.
  • Testing Phase: Following deployment to the International Space Station (ISS), LignoSat will undergo rigorous tests to evaluate its durability and resistance to extreme temperature variations.


  • Environmental Impact: Wooden satellites could potentially mitigate the threat of space debris, offering a more eco-friendly solution.
  • Future Prospects: Success with LignoSat may usher in a new era of environmentally conscious satellite construction.

Additional Information:

  • Data Collection: Researchers will receive data from LignoSat to monitor its performance and structural integrity during testing.
  • Earlier Reports: Previous reports in February 2024 highlighted LignoSat’s potential in combating space pollution and underscored the use of magnolia wood for its burn-up properties.

Multiple Choice Questions (MCQs):

  1. What is the name of the wooden satellite developed by Japanese researchers?
    • A) TerraSat
    • B) LignoSat
    • C) EcoSat
    • D) WoodSat
    • Answer: B) LignoSat
  2. Which two entities collaborated in the development of LignoSat?
    • A) NASA and Boeing
    • B) JAXA and Mitsubishi
    • C) Kyoto University and Sumitomo Forestry
    • D) ESA and Airbus
    • Answer: C) Kyoto University and Sumitomo Forestry
  3. What material was chosen for the construction of LignoSat?
    • A) Aluminum
    • B) Steel
    • C) Magnolia wood
    • D) Plastic
    • Answer: C) Magnolia wood
  4. When is LignoSat scheduled to be launched into space?
    • A) April
    • B) July
    • C) September
    • D) November
    • Answer: C) September
  5. Where will LignoSat be deployed for testing after its launch?
    • A) Hubble Space Telescope
    • B) Lunar Gateway
    • C) International Space Station (ISS)
    • D) Mars Rover
    • Answer: C) International Space Station (ISS)