How to Get to Mars?
Practice, practice, practice – NASA’s Spirit Mars Rover has discovered strange blue rocks on the surface of Mars which contain high concentrations of carbonate–evidence that the planet once had a wet, non-acidic environment that may have been favorable for life. Meanwhile, an international crew has locked themselves away in a module with no windows and only e-mail contact with the outside world for 18 months, in preparation for a potential journey there so they can see if any life still exists there. They even have a room that simulates the surface of Mars, so they can practice leaving their ship!
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