Super-bacteria are growing in space ... and we're the ones breeding them http://www.cnn.com/2014/10/01/health/super-bacteria-growing-in-space/index.html?hpt=hp_bn13 (CNN) -- Manned space missions bring with them a plethora of challenges to keep astronauts alive and healthy, especially on long-duration space missions. Astronauts need to breathe, eat, drink, excrete their food and drink, and be kept free of infections to stay healthy enough to do their job. The key to an astronauts' wellbeing has been found, somewhat contradictorily, to be a group of tiny organisms -- bacteria. A few questions. Could an asteroid possibly with a very small Earth like atmosphere where such bacteria thrive pose a threat to Earth even if the asteroid burnt up in the atmosphere? Also would it be possible to use asteroids to grow colonies of edible bacteria that could be harvested and stored as a food supply for deep Sol System missions?