ECJ EUROPEAN Cleaning Journal

Many of us do it balanced on chairs and ladders, but window cleaning is far more extreme in space, as a pair of Russian cosmonauts found when they cleaned the windows of the International Space Station (ISS) while floating 250 miles (400 km) above the Earth.

They completed their window cleaning task during a six-hour spacewalk during which they also carried out maintenance tasks and installed new equipment."They developed a (cleaning) tool kit with two swabs with handles on them. The swabs are kind of a type of terry cloth," spacewalk specialist Devan Bolch explained before the walk.

"It's kind of similar to what you would use on your car headlights, when they get hazy, to clean them."