World's first wood-panelled satellite launched into space

The world's first wood-panelled satellite has been launched into space to test the suitability of timber as a renewable building material in future exploration of destinations like the Moon and Mars.

Made by researchers in Japan, the tiny satellite weighing just 900g is heading for the International Space Station on a SpaceX mission. It will then be released into orbit above the Earth.

Named LignoSat, after the Latin word for wood, its panels have been built from a type of magnolia tree, using a traditional technique without screws or glue.

Researchers at Kyoto University who developed it hope it may be possible in the future to replace some metals used in space exploration with wood.

"Wood is more durable in space than on Earth because there's no water or oxygen that would rot or inflame it," Kyoto University forest science professor Koji Murata told Reuters news agency.

"Early 1900s airplanes were made of wood," Prof Murata said. "A wooden satellite should be feasible, too."

If trees could one day be planted on the Moon or Mars, wood might also provide material for colonies in space in the future, the researchers hope.

Along with its wood panels, LignoSat also incorporates traditional aluminium structures and electronic components. It has sensors on board to monitor how its wood reacts to the extreme environment of space during the six months it will orbit the Earth.

Experts have warned of the increasing threat of space junk falling to Earth, as more spacecraft and satellites are launched.

Dr Barber acknowledged the space industry was under growing pressure over the amount of pollution it puts into the atmosphere but he was sceptical using wooden spacecraft could provide the answer.

"In principle having materials such as wood which can burn up more easily would reduce certainly those metallic contaminants... But you may end up taking more material with you in the first place just to burn it up on the way down."