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.
Steven J. McAuliffe Steven James McAuliffe (born March 3, 1948) is a Senior United States District Judge of the United States District Court for the District of New Hampshire. He is the widower of Christa McAuliffe, one of the victims of the 1986 Space Shuttle Challenger disaster.