The question then became at what altitude to orbit. Kraft and his men wanted Apollo 8 to fly just 69 miles above the lunar surface, the same altitude at which the command and service modules would operate during a future landing mission. That required almost unimaginable precision, equivalent in scale to throwing a dart at a peach from a distance of 28 feet—and grazing the very top of the fuzz without touching the fruit’s skin. If that weren’t daunting enough, the Moon would be barreling through space at nearly 2,300 miles per hour. Toss a peach in the air at 28 feet and now hit the top of the
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