Phoenix mission will take and heat samples that could contain life
The search for life is the holy grail of Mars exploration. Yet oddly, only one mission was ever sent to Mars equipped with the kind of scientific instrumentation needed to identify signs of life—NASA’s 1976 twin Viking lander mission—and that mission yielded conflicting results. Since Viking, most scientists have thought that the liquid water almost certainly needed to support life could not exist on Mars because of its low atmospheric pressure, which is about one-hundredth that of Earth. Within the last year, however, the conventional wisdom about the Viking experiments and life on Mars has changed radically.
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