Has Piers Sellers or Hans Schlegel been on more Space Shuttle Missions?
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.
Bart Sibrel Bart Winfield Sibrel (born 1964) is a conspiracy theorist who claims that the six Apollo Moon landings between 1969 and 1972 were hoaxes. He has produced four films on the subject, but is mostly known for having been punched in the face by Buzz Aldrin for harassing and insulting him.