Final frontier: Russia develops washing machine for space

The days of astronauts packing enough clean clothes to last a whole mission could soon be over as Russia said Friday it is developing a washing machine for space.

The RKK Energiya space corporation that builds spacecraft dropped a brief mention of the innovation in a video posted on YouTube.

"By the way, for future lunar expeditions and other interplanetary crafts, RKK Energiya has started developing a special space ," the voiceover says, without giving further details.

With water at a premium, currently on the International Space Station (ISS) for stints of some six months cannot wash their clothes in any way and simply put on new outfits when their clothes get dirty.

Astronauts usually wear the same outfit for three to four days and then throw them away with other rubbish.

In 2017, a Russian industry journal published a paper by RKK Energiya researchers with a description and diagrams of a washing machine that could be used on the ISS.

It said that for three crew members, up to 660 kilogrammes (1,450 lbs) of clothes have to be ferried to the ISS over a year.

For a two-year flight to Mars with six this could increase to three tonnes, the authors warned.

Having onboard "equipment for hygienic treatment (washing) could significantly lessen the stocks of personal hygiene products and items of clothing," the report said.

Researchers proposed using not water, which would be wasteful and require extra storage, but carbon dioxide that is produced by humans' breathing and can be turned into a liquid under pressure.

Last year, the Moscow Institute of Chemical Machine-Building said that it was going to develop a shower and sauna for astronauts as well as facilities for them to wash hands and clothes.

NASA has also wrestled with the problem, funding research into methods of washing clothes without water and anti-microbial clothing that could be worn longer.

The announcement of the washing machine project comes as NASA this week cancelled the first ever two-women spacewalk from the ISS because there was only one spacesuit on board of the right size.

© 2019 AFP

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