ocr: 59 Or THE: SEARCHI FORE LIFE Simulation METEORITES THE SETI PROGRAM A - number of laboratories have attempted to simulate living conditions on Mars and in space. The DLR in Cologne, Germany, for example, has built a space simulation chamber, ac cylinder 2.5 meters in diameter and 5 meters long, which can be placed under vacuum and cooled with liquid nitrogen to-190C. An expenmental, man-made "Martian" soil-a mixture of clays such as montmorilionite and amorphic iron oxides-is placed in the chamber then subjected to ultraviolet radiation and cosmic rays. Certain, common higher plants, such as c ...
