Jack Lucentini | Jul 1, 2006 | 10 min read
FEATUREFuel Cells Using sugars, sludge, and the sea floor, can bacteria power the next green-energy alternative?BY JACK LUCENTINIWhen Bruce Rittmann got a $100,000 NASA grant two years ago to find ways for converting human excrement and other organic waste into electricity in spacecraft, he prepared to reach for the stars.When the space agency cut research funding, his ambitions became a bit more grounded. Usin