Japanese researchers developing wooden satellites

Sumitomo Forestry, in collaboration with Kyoto University, is exploring the use of wood in satellite construction to reduce space debris and environmental impact. Current satellites use materials like Kevlar and aluminum, which contribute to space junk. Wooden satellites could decompose more naturally upon re-entry, reducing harmful particles. The project aims to develop the first wooden satellites by 2023, with wood's ability to allow electromagnetic waves to pass through as an added benefit. The specific type of wood used remains a research secret.

What is the main reason for considering wood as a component in satellite construction?

• Wood is cheaper than aluminum.

• Wood is more durable than Kevlar.

• Wood can reduce space junk.

• Wood is lighter than current materials.

What percentage of the approximately 6,000 satellites orbiting Earth are still in use?

• 70%

• 40%

• 60%

• 50%

What environmental concern is associated with deorbiting satellites?

• They cause air pollution.

• They create harmful particles in the atmosphere.

• They disrupt wildlife habitats.

• They increase global warming.

What is one advantage of using wooden housings for satellites?

• They are waterproof.

• They allow electromagnetic energy to pass through.

• They are biodegradable.

• They are fire-resistant.

What is kept secret by Sumitomo Forestry regarding the wooden satellites?

• The satellite's orbit path.

• The cost of production.

• The type of wood used.

• The launch date of the satellites.