Who flew on a 1985 Space Shuttle "Challenger" mission as a Payload Specialist, Claude Nicollier or  Lodewijk van den Berg?
Lodewijk van den Berg Lodewijk van den Berg (] ; born March 24, 1932) is a Dutch American chemical engineer, specializing in crystal growth, who flew on a 1985 Space Shuttle "Challenger" mission as a Payload Specialist.
Andrew J. Feustel Andrew Jay "Drew" Feustel ( ; born August 25, 1965) is an American geophysicist and a NASA astronaut. His first spaceflight in May 2009, STS-125, lasted just under 13 days. This was a mission with six other astronauts to repair the Hubble Space Telescope, aboard Space Shuttle "Atlantis". Feustel performed three spacewalks during the mission. Following several years working as a geophysicist, Feustel was selected as an astronaut candidate by NASA in July 2000. His second spaceflight was STS-134, which launched on May 16, 2011 and landed on June 1, 2011; that mission was the penultimate Space Shuttle flight.