Stephen L. Petranek

Stephen L. Petranek is a former editor of Discover magazine and the author of the book How We’ll Live on Mars, which describes the major players in the race to Mars.

To Mars and Beyond

Five questions about the future of space colonization.

By Stephen L. Petranek | Monday September 7, 2015

To Mars and Beyond

By Stephen L. Petranek | Monday September 7, 2015

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