Scientists may have a solution to the International Space Station's fungus problem

Clogs in water recovery systems on the international space station have been so backed up that hoses have had to be sent back to Earth for cleaning and refurbishing. This is thanks to the build up of biofilms: a consortium of microorganisms that stick to each other, and often also to surfaces — the insides of water recover tubing, for instance. These microbial or fungal growths can clog filters in water processing systems and make astronauts sick.