John Malveaux of
writes:
On
December 21, 2015, SpaceX succesfully landed upright on solid ground at
Cape Canaveral, Florida after traveling into space and back. A Look Back-In 1969, Katherine Johnson calculated the trajectory for Project Mercury and the 1969 Apollo 11 flight to the Moon. See https://en.wikipedia.org/wiki/Katherine_Johnson. In 2015, Katherine Johnson received a Presidential Medal of Freedom.
John Malveaux
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