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-76 STS-76 was NASA's 76th Space Shuttle mission, and the 16th mission for "Atlantis". STS-76 launched on 22 March 1996 at 3:13 am EST (UTC −5) from Kennedy Space Center launch pad 39B. STS-76 lasted over 9 days, traveled about 3800000 mi while orbiting Earth an estimated 145 times, and landing at 5:28 am PST (UTC −8) on 31 March 1996 at Edwards Air Force Base runway 22.