| CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. | Growing bacteria in space | | 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. |
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