Who flew on more Space Shuttle missions, meteorologist Piers Sellers or chemical engineer Lodewijk van den Berg?
Piers Sellers Piers John Sellers OBE (11 April 1955 – 23 December 2016) was a British-American meteorologist, NASA astronaut and Director of the Earth Science Division at NASA/GSFC. He was a veteran of three space shuttle missions.
STS-62-A STS-62-A was a planned Space Shuttle mission to deliver a reconnaissance payload (Teal Ruby) into polar orbit. It was expected to use "Discovery". It would have been the first manned launch from Vandenberg Air Force Base, California, and the first manned mission to go into polar orbit. The mission designation, 62-A, meant: 6=fiscal year 1986, 2=Vandenberg (1=Kennedy Space Center), and A=first flight in that fiscal year.