How and Where Did Life on Earth Arise?

Science  01 Jul 2005:
Vol. 309, Issue 5731, pp. 89
DOI: 10.1126/science.309.5731.89

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For the past 50 years, scientists have been attacking the question of how life began. Research projects now under way may shed more light on the subject, and most exciting of all is the possibility of finding signs of life on Mars.