Tag Archives: genetic engineering

The Genetics (and Ethics) of Making Humans Fit for Mars

In May of 1969, Apollo 10 flew at 25,000 miles per hour. Two months later, the crew of Apollo 11 walked on the moon. Since then, no one has flown so fast nor walked so high. NASA is now preparing for a human mission to Mars, but if our descendants ever shrug off their terrestrial bonds, it won’t be Homo sapiens who leaves, but another, more intelligently designed species. We’re not fit. For evolutionary biologists, “fitness” is […]

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