<ul><li>A £150,000 prize for a device that can produce clean water from icy lunar soil has been won by a pair of inventors.</li><li>The solution involves a microwave oven, a motorised device for feeding woodchips into a barbecue, and sound waves.</li><li>The challenge is to produce drinking water from ice-rich regolith around the moon's south pole for future moon missions.</li><li>The winning solution, called the SonoChem system, uses a multi-step contraption to vaporise and purify the water.</li></ul>

Gloucestershire company wins prize for inventing way to produce clean water on moon

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