Germs Taken to Space Come Back Stronger and Deadlier

The germ Salmonella was put on a space shuttle and sent into space because scientists wanted to see how space travel has an affect on germs. Researchers found that 167 genes had changed in the salmonella that went into space. They say that the germs change genetically because they sensed that they were in new environment. When they fed mice the germs from space they were three times more likely to get sick and die than the mice that were fed germs that didn’t go into space.