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Life on Mars: Down But Not Out Says Mars Society Founder

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Curiosity self-portrait

A self-portrait of Curiosity rover.

Credit: NASA

Hopes of alien life on Mars were dashed Thursday when a paper published in the journal Science concluded that the Curiosity rover has yet to find any methane gas, a strong indicator of microbial life. But Robert Zubrin, cofounder and president of the Mars Society, says that the search for alien life on Mars is only just beginning.

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