Waste not, want not on the road to Mars   The MELISSA lab, detail of the third compartment   The MELISSA lab   MELISSA eco-system diagram. The MELISSA recycling system will consist of five separate, but interconnected, compartments. In three of them, waste will be progressively broken down by different fermentation processes. In the fourth compartment, algae or plants will grow to produce food, oxygen and water. The fifth   MELISSA lab, one of the five interconnnected compartments, with experienced crew. Release date: 27 September 2002