Tuesday, July 22, 2014
Engineer Daniel Schubert holds lettuce at the German Aerospace Center on July 21, 2014 in Bremen, Germany. Scientists and engineers from the German Aerospace Center (DLR) are developing greenhouses for a potential Mars colony. The greenhouses will contain combined life-support systems which use recycled urine to manufacture fertilizer, helping to grow vegetables for a lunar and Mars environment. The first greenhouse will be tested for nine months in 2016/17 in an inhospitable environment in the Antarctic.
© The Seattle Times Company